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    Light Carbon FS937: Downcountry 29er Build

    You can finally get a downcountry frame that ships factory-direct and looks badass.

    Light Carbon FS937: Downcountry 29er Build-1-cover-pic-500.jpg

    Light Carbon LCFS937
    Price: $550 ($80 USA shipping)
    Travel: 120-140mm front, 115-130mm rear
    Head angle: 67o
    Reach: 500mm (20.5”)
    Frame construction: Full Toray 700 carbon fiber
    Sizes: 17.5”, 19”, 20.5”
    More info: Light Carbon website

    Disclaimer: I will sell this complete build (with a new cockpit) in July for $4000 to make way for the next steed. $4k obo.

    The FS937 might just be the most visually assaulting and forward-thinking carbon frame that’s shipped consumer-direct by the factory. Even Pinkbike’s Brian Park cautiously praised it in his article on “5 surprisingly nice catalog frames” last year. One Pinkbike commenter asked, “What’s a designer like that doing on open-mold frames?”

    Light Carbon FS937: Downcountry 29er Build-pinkbike.jpg
    Pinkbike highlighted the “clean looking” LCFS937 frame (Photo: Pinkbike)

    Indeed, this frame is an original and creative work of bicycle art.

    Light Carbon FS937: Downcountry 29er Build-2-snow-pic.jpg
    I built up my FS937 with 115mm rear travel and 120mm front travel, weighing in just over 22 lbs. However, you can match your course and style by choosing your suspension travel strategically. For example, you can limit rear travel by using a different shock stroke (40mm is ~115mm travel, 42.5mm is ~123mm travel, and 45mm is ~130mm travel). You can also choose your front travel, as axle-to-crown lengths corresponding to about 120mm-140mm of travel in a 29er configuration will play well with the geometry.



    CONSTRUCTION AND FEATURES
    Light Carbon FS937: Downcountry 29er Build-4-non-drive-side.jpg
    The FS937 is a looker. The massive seat-tube/top-tube triangle looks like an Evil bike on steroids, but the most original characteristic of this frame is the linkage sandwiched between a split seat tube. In theory, this linkage sandwich should be stiffer than a linkage forked around the seat tube. Indeed, it is.

    Light Carbon FS937: Downcountry 29er Build-shock-zoomed-out-2.jpg
    The suspension linkage is sandwiched inside a split seat tube

    Sandwiching the linkage between downtube stanchions is something that hasn’t been done before in XC/trail bikes, as far as I am aware. This is well thought out. The layup above the split in the seat tube is very beefy and quite wide. The large triangle feature at the seat tube/top tube junction helps space the seat tube wide enough without looking strange. The linkage is quite wide, probably wider than needed, but this can only translate to more stiffness.

    Light Carbon FS937: Downcountry 29er Build-triangle.jpg
    The seat tube/top tube junction is overbuilt for stiffness

    Nearly the entire frame is generously overbuilt. This adds a little weight, but it is confidence-inspiring when riding aggressively and provides outstanding stiffness. The seatstays are noticeably compliant, with integrated flex to accommodate the single pivot rear triangle design. The frame isn’t a delicate XC specialist—my 20.5” painted frame weighed 2580g—it’s built for burlier endeavors.

    Light Carbon FS937: Downcountry 29er Build-routing-ports.jpg
    Front cable ports are tightly fit and look clean

    Light Carbon FS937: Downcountry 29er Build-rear-routing-port.jpg
    Chainstay routing ports are clean and feature molded-in guides

    Internal cable routing is nicely executed. The chainstay brake and shifter cables are easy to route thanks to molded-in guides, while the front ports are tightly fit and easy to handle.

    Internally-routed dropper posts up to 170mm in size 17.5” and 200mm in size 19” can fit inside the seat tube. That, or you can stay rowdy and rigid like me.

    Toray 700 carbon fiber construction provides stiffness and reliability on par with industry standards. Frames are tested to 130% of SGS industry standards. 2-year manufacturer warranty comes with the frame.

    Light Carbon not only honors their 2-year warranty, they fix the problems. I have been in touch with a Cat 1 racer who somehow broke his trunnion shock mounting hardware resulting in a cracked linkage and front triangle. Light Carbon has since been shipping their frame with stronger (and heavier) trunnion mounting bolts and beefed up the layup in the linkage.

    Light Carbon FS937: Downcountry 29er Build-drivetrain.jpg
    The frame is 1x-specific and fits a 32T chainring. Light Carbon advertises that a 34T will fit, this would be almost uncomfortably tight. A threaded BB shell and integrated ISCG-05 chain guide mount are appreciated details, though I don’t have a need for the chain guide mount. Rear spacing is 12x148mm boost, and the rear triangle clears 29x2.4” tires.



    GEOMETRY AND SIZING
    SIZE S (17.5”) M (19”) L (20.5)”
    FORK AXLE TO CROWN 530 / 540 / 550 530 / 540 / 550 530 / 540 / 550
    STACK 562 / 566 / 569 623 / 579 / 582 589 / 593 / 596
    REACH 445 / 440 / 436 481 / 470 / 466 505 / 500 / 496
    WHEEL BASE 1174 / 1178 / 1182 1210 / 1214 / 1218 1246 / 1250 / 1254
    TOP TUBE HORIZONTAL 589 / 590 / 591 622 / 623 / 624 657 / 658 / 659
    HEAD TUBE ANGLE 67.5o / 67o / 66.5o
    EFFECTIVE SEAT TUBE ANGLE 75o / 74.5o / 74o
    BB DROP -40 / -36 / -33
    CHAIN STAY LENGTH 444.5
    HEAD TUBE LENGTH 95 110 125
    SEAT TUBE LENGTH 440 480 520
    FORK OFFSET 51 51 51
    REAR TRAVEL 115mm (165x40) / 123mm (165x42.5) / 130mm (165x45)
    MAX TIRE 29x2.35” or 27.5x2.8"

    The FS937 is the longest and slackest factory-direct frame in the Trail and XC category, with a 67-degree head angle, and a reach of 500mm in a size large.

    The wheelbase is very long, at 1250mm in size large. This is great progression to see in a factory design, where geo typically lags 2-3 years behind industry leaders.

    Unlike most Chiner frames, the design and geometry of this frame is entirely original, as far as I am aware. It’s refreshing to see a factory producing a frame that can compete with leaders in the industry.



    SUSPENSION DESIGN

    The FS937 keeps things simple with a single pivot design with integrated flex stays. Suspension is supple through the entire stroke, even during heavy braking on demanding descents. The seatstay caliper mount does not affect suspension performance as far as I can tell.

    Light Carbon FS937: Downcountry 29er Build-shock-hardware.jpg
    The shock is mounted with a 21.8mm (or 22.2mm) spacer kit and two machined spacers provided with the frame


    Light Carbon FS937: Downcountry 29er Build-linkage.jpg
    The linkage is routed between a split seat tube

    Light Carbon FS937: Downcountry 29er Build-5-shock-mount-hole.jpg
    A hole in the downtube doubles as an access point to the shock air valve and a drain for the cavity burrying the lower mount

    The FS937 fits trunnion-mount 165mm eye-to-eye shocks. Fox offers 40, 42.5, and 45mm stroke DPS shocks (equating to 115mm, 123mm, and 130mm rear travel on this frame), and all you’ll need is a single 21.8mm 8mm mounting kit. (54*φ10mm - 22.2*φ8mm). Light Carbon also provided some machined steel spacers to fit on either side of the shock kit. I ordered a 22.2mm kit and this was just too tight, it took a few taps from a rubber mallet to work the spacers into place. There was absolutely no play in the shock setup, snug and able to move quite freely with properly tightened bushings, but unfortunately bushings instead of bearings means there is considerable stiction at the joints.



    BUILD KIT
    Appx. Value: $4000
    Trailside Weight: 22.26 lbs
    Travel: 120mm front, 115mm rear

    Light Carbon FS937: Downcountry 29er Build-tall-pic-snow.jpg
    Rear Shock Fox Float DPS Factory 165x40mm, Trunnion mount
    Fork Fox Float 34 SC Factory, 29”, 120mm Travel, 51mm offset
    Headset ZTTO Tapered
    Cassette SRAM X01 10-42T
    Crankarms Race Face Next SL Carbon 175mm, OneUp 32T Switch
    Bottom Bracket BSA 73mm, 30mm diameter
    Derailleur/Shifter Shimano XTR 11-Speed
    Chain PYC SP1101
    Handlebar Integrated 680mm width 80mm stem -17-degree rise
    Grips eBay Chunkies
    Brakes Shimano XTR Race
    Wheelset Speedsafe 280g 29” 28h 22mm internal width, Pilar XTRA 1420 spokes, DT 350 boost hubs XD straight pull
    Tires Schwalbe Rocket Ron Liteskin Evo 29x2.25”
    Seat Unbranded carbon shell/rails, foam padding
    Seatpost Unbranded ultralight Hylix-style 31.6mm, 350mm
    Pedals XTR SPD
    Bottle Cage Can’t decide

    Many of my components are reviewed (briefly) in this thread: https://forums.mtbr.com/weight-weeni...0-1094616.html
    Light Carbon FS937: Downcountry 29er Build-rotors.jpg
    Ashima Ai2 rotors all the way, light and strong!

    Light Carbon FS937: Downcountry 29er Build-saddle.jpg
    This 135g $29 saddle has nearly 2000 miles on it. You'd hardly know.

    Light Carbon FS937: Downcountry 29er Build-top-cap.jpg
    Integrated $50 235g carbon bar and fancy top cap

    Light Carbon FS937: Downcountry 29er Build-axle.jpg
    The stock axle that Light Carbon shipped with the frame is just 50g!

    Light Carbon FS937: Downcountry 29er Build-seatpost.jpg
    This seatpost is <150g and <$30. Reminiscent of the Tune Skyline.

    Light Carbon FS937: Downcountry 29er Build-fox-34-fork.jpg
    The Fox Float 34 SC Factory fork is fairly light and handles bigger hits more capably than a Float 32

    Light Carbon FS937: Downcountry 29er Build-grips.jpg
    Good grips for $0.99. Chunky like ESI Chunkies, cheap enough to replace.



    RIDE IMPRESSIONS

    I was pretty stoked rolling into the trail for the first time on this build. My first impression was how incredibly stiff the entire bike was even through hard corners. This translated to impressive control, allowing me to push very hard through sections I normally would coast or dial back the power. I'm not sure if this is just attributable to the overbuilt construction, but the unique suspension design of this frame could also be part of this amazing stiffness. Certainly, if this suspension layout was an experiment, it's a success.

    Descending. The most impressive (and fun) aspect of this bike is its incredible control and stability on descents. Huck as hard as I could, I could not get the rear to squeak, flex, or give under pressure. The long wheelbase was confidence-inspiring, providing great stability.

    Flats. On the flats, the bike carried momentum very well. However, accelerating out of corners took consciously more effort than my 21lb Pro-Mance M7007 or 18lb FM-299B. There was also a bit of pedal bob under power, more than I’d like to feel. I tried playing with shock rebound and pressure but couldn’t achieve a balance I liked. This may be an inherent limitation of the low pivot point required for this unique suspension design.

    Climbing. For a 120mm bike, the LCFS937 climbs well, but certainly not as well as my M7007. I felt slightly slow on climbs and had a hard time navigating obstacles and carrying momentum. Perhaps it was the 22.3 lbs of weight, which is heavier than 21lb on the M7007 or 18lbs on my most recent build, the TanTan FM-299B. More likely it’s the long wheelbase and slacker HTA. Of course, I’m judging by XC standards and can’t expect this to perform like a 100mm travel bike. For what it is, though, it’s very good. On an average ride, I'm super happy with it, but it may challenge my KOM-crushing ambitions.

    Light Carbon FS937: Downcountry 29er Build-shock-pocket.jpg
    The mud-collecting pool around the shock mount is drained by a hole molded into the side of the downtube, which doubles as an access point for the shock air valve. I don’t expect dirt collection here to be an issue because it is quite well protected by the wide downtube and beefy seat tube. But, if gunk around your shock makes you feel psycho, simply squirt it down with a hose nozzle on jet after the ride.



    BUILD TIPS


    • The frame requires a 180mm rotor in the rear.
    • Get a single 22.19 or 21.8mm M8 shock mounting hardware kit. For a Fox DPS Float Trunnion shock, get this: https://www.worldwidecyclery.com/pro...ece-aluminum-1
    • Only Trunnion shocks are compatible with this frame.
    • Shock eye-to-eye length must be 165mm, but you can choose between 40mm, 42.5mm, and 45mm stroke lengths to limit possible rear wheel travel (115mm, 123mm, or 130mm travel, respectively).
    • Plan on a 2-week lead time, and 1-2 weeks for delivery (to the USA).
    • Order directly from Light Carbon, or I’m happy to order your frame for you and help you plan your build at the cost of what Light Carbon would charge you. PM me with questions. I also can put together complete build kits for you.




    Is this frame for you?
    The FS937 falls confidently into the downcountry category. It can shred the downhills and carry speed on the flats but does not climb as efficiently as an ultralight 100mm-travel XC steed. That said, it offers control and stiffness like no XC whip can.

    This all translates to more fun. If you aren’t shaving grams to save milliseconds, this may be your ticket. It can nearly match the capability of a shorter travel rig on the climbs, but far outshines it on the descents. Along the way, it will absorb a few more bumps, add a little extra confidence, and just be an all-around fun trail bike.

    Pros:

    • Progressive long-and-slack geometry
    • Original aesthetic design with unique suspension linkage setup
    • Remarkably stiff linkage with superb control
    • Affordable
    • Fits long-travel dropper posts


    Cons:

    • Slightly sluggish on the climbs
    • Doesn’t fit the newer crop of 29x2.6” tires
    • Pedal bob due to low suspension pivot point


    Light Carbon FS937: Downcountry 29er Build-3-side-snow-pic.jpg

    Stay tuned for a long-term update. Post up or PM me with any questions or comments!
    Last edited by sissypants; 04-16-2019 at 05:58 AM.

  2. #2
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    just stop with using the "downcountry" marketing bs

    cool bike, otherwise

  3. #3
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    Quote Originally Posted by Harold View Post
    just stop with using the "downcountry" marketing bs

    cool bike, otherwise
    Except for the wonky (his word, not mine) Chiner bits, Ashima rotors and the price. I'm up for $400 if the shock and fork aren't "wonky".

  4. #4
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    Quote Originally Posted by noapathy View Post
    Except for the wonky (his word, not mine)

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    Wow, these forums are loaded with veteran trolls. Grow up.

    For those who care about the bike rather than my semantics, I thought these pics might be of interest.

    I've been in touch with a guy who built up an LCFS937 and raced it at Sea Otter recently and shared some pics with me. He qualified in dual slalom finals for pro with the Santa Cruz Syndicate, got a great placement in the UCI Elite XC at bear mountain two weeks prior, then got 3rd in the pro enduro the next day. Pretty impressive, goes to show how versatile the bike can be.

    Light Carbon FS937: Downcountry 29er Build-img_2522.jpg

    Light Carbon FS937: Downcountry 29er Build-img_2520.jpg

    Light Carbon FS937: Downcountry 29er Build-img_2518.jpg
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  6. #6
    BOOM goes the dynamite!
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    ^^^This is my new favorite song! I must immediately play it for the wife until she rolls her eyes.

    Also...

    Quote Originally Posted by sissypants View Post
    Pretty impressive, goes to show how versatile the bike can be.
    Neato. Pics of someone else on a different bike.

  7. #7
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    Quote Originally Posted by noapathy View Post
    ^^^This is my new favorite song! I must immediately play it for the wife until she rolls her eyes.
    :
    I bought the book for my nephew for christmas

    Sent from my VS995 using Tapatalk

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    Quote Originally Posted by noapathy View Post
    Neato. Pics of someone else on a different bike.
    This guy would have posted were it not for trolls like you that give these forums a bad rap. He told me exactly that. I thought others may still appreciate his experiences on the frame.

    I suggest you check out the off camber subforums. I hope this thread is helpful for people looking for bikes like this, I didn't write the post for nothing.
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  9. #9
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    Seems like a fair deal for $630. I'd like to see lockout cable routing for the rear shock.

  10. #10
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    Great looking bike!

    No dropper? The seat tube looks a bit long?

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    Thank you for taking the time to do this write up - be aware that it is appreciated.

    I am interested in building a ~140/130mm F/R 29er trail bike, and the geo on this frame is very close to my ideal. I am hoping for chainstays no longer than 440mm though, but this isn't far off. Otherwise the geo is pretty much spot on.

    I am not convinced that this design, with the internal approach to the way the stays/link are attached to the main frame, would be stiffer though. I was thinking that the usual approach, with the pivot bearings further apart, would be stiffer, and less susceptible to play if there were some slight gaps (or wear) around the bearing-to-pivot-pin interfaces. Interested in your thoughts. It is confidence inspiring that someone is using one for gravity related racing, but I suppose the issue I am worried about might not come up until the bike has been ridden a bit.

    Seems pretty well priced, maybe low enough to give it a go.

    Dunno if I'd call it latest geo though, as it seems that 2019 is the year of 77 degree seat tubes. Having said that, I am still finding ~75 degrees a bit steep, so I'm more interested in the slightly older 2017/18 geo anyway.

    Do you have any links to similar (completed) build threads / ride reports on this frame? I have been following the one on chinertown, but, other than your contributions, it hasn't got very far yet.

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    The dropper post cable routing looks like it might cause a few issues with that very tight radius from top tube up the seat post. Wonder if it's possible to route it via the bottom tube then directly up the seat tube?

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    Nice build!
    Thanks for the review!

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    Quote Originally Posted by robmac48 View Post
    The dropper post cable routing looks like it might cause a few issues with that very tight radius from top tube up the seat post. Wonder if it's possible to route it via the bottom tube then directly up the seat tube?
    Good point. It does indeed look like a very sharp angle there. There was a plastic routing guide in place when I got the frame, so actually routing the cable would be fairly easy, but that sharp kink could be challenging. I'm not running a dropper, so I don't know.

    This is the pic LightCarbon uses to illustrate cable routing:

    Light Carbon FS937: Downcountry 29er Build-routing-guides.jpg

    I do not think it would be possible to route it via the bottom tube, the seat tube "stanchions" are thin enough and the layup seems like it should be thick enough to block any path through the tube.
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    Quote Originally Posted by Schulze View Post
    Seems like a fair deal for $630. I'd like to see lockout cable routing for the rear shock.
    It's very clean actually. You can see the hole that takes in the lockout cable here, then it's just routed right up the downtube. I'm not using remote lockout.

    Light Carbon FS937: Downcountry 29er Build-shock-port-hole.jpg
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    Quote Originally Posted by sclyde2 View Post
    I am not convinced that this design, with the internal approach to the way the stays/link are attached to the main frame, would be stiffer though. I was thinking that the usual approach, with the pivot bearings further apart, would be stiffer, and less susceptible to play if there were some slight gaps (or wear) around the bearing-to-pivot-pin interfaces. Interested in your thoughts. It is confidence inspiring that someone is using one for gravity related racing, but I suppose the issue I am worried about might not come up until the bike has been ridden a bit.
    Thanks, this was my main concern as well when buying this frame without any prior experience shared online as well. Personally, this bike is so much stiffer than my Pro-Mance M7007 which used a similar single-pivot design but with pivot bearings farther apart, so it's a fair comparison. There is absolutely *zero* play anywhere in the rear triangle or linkage. There is no sign that the linkage can be torqued side to side by pushing or pulling sideways on the rear wheel when holding the front triangle.

    Quote Originally Posted by sclyde2 View Post
    Dunno if I'd call it latest geo though, as it seems that 2019 is the year of 77 degree seat tubes. Having said that, I am still finding ~75 degrees a bit steep, so I'm more interested in the slightly older 2017/18 geo anyway.
    I wouldn't want a much steeper seat tube. I really like the longer reach this kind of geo gives, and I wouldn't want to sit any further forward over the BB. I have a feeling steeper STAs are more relevant in much longer-travel bikes.

    Quote Originally Posted by sclyde2 View Post
    Do you have any links to similar (completed) build threads / ride reports on this frame? I have been following the one on chinertown, but, other than your contributions, it hasn't got very far yet.
    Just the one on Chinertown: Lightcarbon LCFS937 Build
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    Great review, i learned a lot about this frame

    Quote Originally Posted by sissypants View Post
    Personally, this bike is so much stiffer than my Pro-Mance M7007 which used a similar single-pivot design but with pivot bearings farther apart, so it's a fair comparison. There is absolutely *zero* play anywhere in the rear triangle or linkage. There is no sign that the linkage can be torqued side to side by pushing or pulling sideways on the rear wheel when holding the front triangle.
    Do you think this "extreme" stiffness can explain the feeling you had of slow acceleration and slow climbing too as the bike is probably not lively enough under power
    It's known that some manufacturers do not go for maximum rigidity to keep grip and more easy bike for the commun biker.




    Quote Originally Posted by sissypants View Post
    I really like the longer reach this kind of geo gives,
    You kept the same cockpit as your previous bike, is that a choice not to adjust stem to longer reach and maybe different stack?
    Do you plan to test with shorter stem, wider bar to stick more with the DNA of that frame?

  18. #18
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    Quote Originally Posted by numberzero View Post
    Great review, i learned a lot about this frame. Do you think this "extreme" stiffness can explain the feeling you had of slow acceleration and slow climbing too as the bike is probably not lively enough under power. It's known that some manufacturers do not go for maximum rigidity to keep grip and more easy bike for the common biker.
    Thanks, good questions! No, I do not think the slower acceleration is due to the stiffness. If anything, a stiffer frame means more efficient power transfer. To be clear, the frame still accelerates quickly It's dependent mostly on the rider and build weight, but increased pedal bob due to lower pivot point is also a factor in how efficiently power is transferred. To address this I am running higher pressures in the shock than I'd consider ideal (200 psi vs 165 psi for my weight of 165 lbs).

    Quote Originally Posted by numberzero View Post
    You kept the same cockpit as your previous bike, is that a choice not to adjust stem to longer reach and maybe different stack? Do you plan to test with shorter stem, wider bar to stick more with the DNA of that frame?
    I understand most people have different preferences than me, but I like shorter bars because I clip trees often. I'd rather have shorter bars than more crashes. I went with this stem length because I wanted to run this particular integrated handlebar. The longer reach is perfect for me, and neither is the stack too low--I like a low position! True, if this were going to be used as a trail bike I can see most people going for wider bars, more spacers in the steerer tube, a short stem, maybe even shorter fork offset. This would all translate to faster steering and a more upright position, but wouldn't change my review.
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    Quote Originally Posted by sissypants View Post
    It's very clean actually. You can see the hole that takes in the lockout cable here, then it's just routed right up the downtube. I'm not using remote lockout.

    Click image for larger version. 

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    Ok that's pretty good. These lower antisquat bikes are great for tech climbing but they need a remote to climb mode or lockout for the smooth stuff.

    I'm also looking at the seat stay design. It looks too thick to facilitate a flex stay type action. The M06 type stay looks a lot better.

  20. #20
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    Quote Originally Posted by Schulze View Post
    Ok that's pretty good. These lower antisquat bikes are great for tech climbing but they need a remote to climb mode or lockout for the smooth stuff.

    I'm also looking at the seat stay design. It looks too thick to facilitate a flex stay type action. The M06 type stay looks a lot better.
    True, a remote would be very helpful on this bike.

    The Dengfu M06 has a very thin seat stay, easily able to flex, but Light Carbon reps also insist there's a flex stay built into this frame. It's a thick stay, I agree, but whatever it is it works well.
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    Quote Originally Posted by sissypants View Post
    but increased pedal bob due to lower pivot point is also a factor in how efficiently power is transferred. To address this I am running higher pressures in the shock than I'd consider ideal (200 psi vs 165 psi for my weight of 165 lbs).
    If we want antisquat near 100%, what is the ideal chainring to get chain aligned with main pivot? 28, 26 teeths?
    I'm not sure that putting too much pressure solves the problem, on my LCFS902 going under 25% sag makes the bike more bobbing in fact and i lose traction and confort, the sweet spot is between 25 and 30% sag. This new frame could be different but i think if you like pedaling you need a high pivot point or a lockout

  22. #22
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    Nice looking frame, but two aspects about this frame rule it out for me. Longish chainstays, something close to 17.5 inches. The other thing is the cracked frame on Chinertown really makes me question their quality control.

    I am interested in the Workswell WCB-M-145. That frame has shorter chainstays, has a Horst link rear ( I am old school and like the small bump compliance Horst link suspension frames offer) and I already have a Workswell hardtail, the 0-62 I believe, going on 3 years without any major issues.
    You cannot go against nature, because when you do, its part of nature too.

  23. #23
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    Quote Originally Posted by Ottoreni View Post
    Nice looking frame, but two aspects about this frame rule it out for me. Longish chainstays, something close to 17.5 inches. The other thing is the cracked frame on Chinertown really makes me question their quality control.

    I am interested in the Workswell WCB-M-145. That frame has shorter chainstays, has a Horst link rear ( I am old school and like the small bump compliance Horst link suspension frames offer) and I already have a Workswell hardtail, the 0-62 I believe, going on 3 years without any major issues.
    The Workswell WCB-M-145 is a nice bike, for sure. I considered it myself

    Regarding the cracked LCFS937 frame on Chinertown, I have texted with this rider and he said it was because his Trunnion mounting bolt gave out, which allowed his shock to get angled against the rocker link (not perfectly vertical), which then asymmetrically cracked the rocker link which in turn cracked the front triangle around the linkage pivot points.
    - Light Carbon immediately replaced his frame and his is back up riding and racing.
    - Light Carbon sourced solid bolts (instead of hollow bolts) to prevent future damage due to hardware failure
    - Light Carbon beefed up the layup in the suspension linkage to prevent linkages from cracking.

    I received the solid Trunnion mounting hardware with my frame, which means that likely all changes will be propagated to future builds. I hope that is reassuring. It goes to show that a brand not only stands behind their product, but makes appropriate modifications to address failures.

    Long chainstays are just long chainstays, this hasn't been a problem with me throwing the bike around or popping jumps.

    I am absolutely enjoying the bike. I am blowing PRs out of the water on the downhills and keeping even everywhere else. Just today I got 7th overall on the loop at a super-popular local trail, something like 2,500 attempts, and I wasn't even pushing that hard. I'll be back for the KOM for sure. I just feel like I can lay power down wherever and braap corners, pop ruts, rip through technical stuff, like no other XC bike I've had. I don't know what it is about the bike exactly, I'll sort it out.
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  24. #24
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    Quote Originally Posted by sissypants View Post
    The Workswell WCB-M-145 is a nice bike, for sure. I considered it myself

    Regarding the cracked LCFS937 frame on Chinertown, I have texted with this rider and he said it was because his Trunnion mounting bolt gave out, which allowed his shock to get angled against the rocker link (not perfectly vertical), which then asymmetrically cracked the rocker link which in turn cracked the front triangle around the linkage pivot points.
    - Light Carbon immediately replaced his frame and his is back up riding and racing.
    - Light Carbon sourced solid bolts (instead of hollow bolts) to prevent future damage due to hardware failure
    - Light Carbon beefed up the layup in the suspension linkage to prevent linkages from cracking.

    I received the solid Trunnion mounting hardware with my frame, which means that likely all changes will be propagated to future builds. I hope that is reassuring. It goes to show that a brand not only stands behind their product, but makes appropriate modifications to address failures.

    Long chainstays are just long chainstays, this hasn't been a problem with me throwing the bike around or popping jumps.

    I am absolutely enjoying the bike. I am blowing PRs out of the water on the downhills and keeping even everywhere else. Just today I got 7th overall on the loop at a super-popular local trail, something like 2,500 attempts, and I wasn't even pushing that hard. I'll be back for the KOM for sure. I just feel like I can lay power down wherever and braap corners, pop ruts, rip through technical stuff, like no other XC bike I've had. I don't know what it is about the bike exactly, I'll sort it out.
    Glad to hear the warranty issue is being handled quickly. That seems to be one of the biggest fears consumers have dealing with Chinese suppliers. My one warranty experience with Chinese suppliers was with a carbon rim. Shortly after building it up into a wheel, a crack developed around a spoke hole. A picture of the crack, a picture of the rim's serial number, $50, and a week later I had a new rim. Strangely enough, I am still riding the wheel with the cracked hole two years later. It has never fully broken.

    My WorksWell has been going strong the past two - three years. I have been happy with it..and it has short chainstays. I know that is a rider preference. I feel any chainstay near 445mm is more difficult to maneuver. I have two hardtails. My Workswell and a titanium hardtail and I am partial to the Workswell becuase its chainstays are about 8mm shorter.

    No doubt, this is one amazing looking frame, but not for me. In the long run I would always wonder about the chainstay length. I know myself, it would be nagging me all the time. A little doubt in the back of my mind.

    I am really looking hard into full suspension 29ers with chainstays around 435mm. Any you can recommend I look at?
    You cannot go against nature, because when you do, its part of nature too.

  25. #25
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    Quote Originally Posted by Ottoreni View Post
    No doubt, this is one amazing looking frame, but not for me. In the long run I would always wonder about the chainstay length. I know myself, it would be nagging me all the time. A little doubt in the back of my mind.

    I am really looking hard into full suspension 29ers with chainstays around 435mm. Any you can recommend I look at?
    I guess chainstay length is to you as weight is to me. I try to get over the placebo effect and just ride it FWIW, but the thought is always there... is the weight slowing me down?

    Here's a bike I've had in the past that was *really* good: https://forums.mtbr.com/29er-bikes/2...7-1076993.html

    The new TanTan FM06 also will be up on TanTan's website in the next few weeks, very similar to Orbea Oiz. They already have all sizes in stock. I can get those to people for $650 + shipping, TanTan will likely quote $699 + shipping. Pro-Mance has a very similar frame ready for release as well, just another month or two. Again, almost exactly like the Orbea Oiz.
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  26. #26
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    oh why did they have to name it the FM06? We already have the M06 which is the Yeti ASR knockoff.

  27. #27
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    Quote Originally Posted by Schulze View Post
    oh why did they have to name it the FM06? We already have the M06 which is the Yeti ASR knockoff.
    Light Carbon FS937: Downcountry 29er Build-fm06.jpg

    Light Carbon FS937: Downcountry 29er Build-fm06.png

    Light Carbon FS937: Downcountry 29er Build-fm06-geo.jpg
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  28. #28
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    Ok, so we're talking about the same thing. There's a post on Chinertown with a guy who is running a similar 19" with 27.5x2.6 tires and recommends a 120mm fork. I'm still chicken on these shady flex stay designs though lol.

    The geo chart on the FM06 posted on 3-16-19 on TanTan's site has a different geo chart than the one above. TT and reach are different.

  29. #29
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    more XL/21s! yay! My Bulls has a small upper triangle like that FM06 has, I joke that it's the carrying handle, and I use it as a carrying handle.
    skidding is the signature of the novice; learn how to use your brakes.

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