I've got the new Fox CTD shock installed. I'm finding a bit of pedal bob when both front and rear are locked out and I'm gunning it at a high cadence on tar or hardpack. Only on full lock (Climb mode) at the rear, if I go to Trail mode the feel of bob is eliminated but obviously that is the shock doing it's job.
My question is, what can I change to eliminate bob on full lock out, a hardtail should not bob?
Pretty unusual that you're experiencing bob when it's in the fully locked position. I run my rockshox monarch on the lightest pedal platform at about 28% sag and get only the tiniest bit of bob, I can hardly notice it.
Maybe there's a problem with the shock. If there's only a small amount of bob in trail mode, lockout should not experience any
Funny is , when i came to whoseller in my time to choose a carbon bike he told me that since all manufactury was removed to china all carbon frames went up with quality by 100%...Which is so sad... Not to mention the decrease the price...
Am thinking of getting one for my wifey in s/m if anyone has one I'd love to give it a ride.
Well she would, doubt it would fit my gigantinormous size.
Why would I care about 150g of bike weight, I just ate 400g of cookies while reading this?
You can look at other photos in "my gallery"
Anyway, I'll describe components:
frame 21" (with seatpost, saddle, stem, handlebar, shock, bottle cage) from flyxii
fork RS SID RLT 2013
wheels on pacenti CL25 rims with DT Swiss 240 hubs (QR) and aerolit spokes (F716g, R817g)
brakes shimano xtr 985 (F180, R160)
crank FSA k-force light 386 BB30 27/39 10speed
cassete shimano XT CS-M771-10 11-36
rear der. shim RD-M980 GS
front der. shim. FD-M785-E 2/10
chain shim. CN-M980GS
shifters shim. SL-M780 2/3 10
pedals Token TK462M
tyre: for dry conditions Schwalbe Furious Fred Evo PaceStar Faltreifen 29x2.0 (installed tubeless)
for wet Maxxis Beaver 29x2.0 aramid tpi60
Total Weight: 10 370g ("dry" version)
Criticism is appreciated
Really nice build.
Additionally to the rear shock question asked by towag, what's the length of your seatpost? I'm contemplating that 350mm should plenty enough there, actually I already have it ordered. (I'm going with the 19" frame.)
What's your stem / seatpost / handlebar?
Looks like you went with the chinese carbon seat - I already have a similar one at home, but haven't tried it out yet (no bike lol) - I'm worried it won't be too comfortable - did you do any longer rides on it?
I'm also going with DT Swiss 240s (Center Lock), 15 front and 10 rear, but I'm getting carbon rims from China.
What tubeless kit have you used? Any homemade additions to the mixture?
Funny is , when i came to whoseller in my time to choose a carbon bike he told me that since all manufactury was removed to china all carbon frames went up with quality by 100%...Which is so sad... Not to mention the decrease the price...
You know, I really did not know what you were talking about, but then I found this blog: Busted Carbon
None of that is chinese carbon! But I think the real issue why carbon is so expensive here on west (europe and US), is that it requires the user to not be a total noob, and e.g. use a torque wrench and generally be more careful with the bike than with a steel or aluminum frame, otherwise breakages result, and obviously manufacturers don't like it — even if you decline warranty on lawful terms, you get a dissatisfied customer. I think that's the reason why carbon is destined to high-end bikes and savvy build-it-myself users.
Now carbon-kevlar mixture might be the next big thing - it's lighter and stiffer than carbon, and (I assume) much harder to destroy, although definitely not noob-proof.
...Which damper did you choose? And shouldn't it be mounted the other way round?
Kindshock 582RL, it comes with frame ( I asked flyxii any shock to escape problem with fastener). Heavy, no rebound, but two air cameras. I'm going to replace it with RS Monarch RT3.
Does not matter how to mount it, there is no remote; current position is convinient for me to reach adjustment lever from saddle, less mud comes from rear wheel.
...what's the length of your seatpost?
What's your stem / seatpost / handlebar?
Looks like you went with the chinese carbon seat - I already have a similar one at home, but haven't tried it out yet (no bike lol) - I'm worried it won't be too comfortable - did you do any longer rides on it?
I'm also going with DT Swiss 240s (Center Lock), 15 front and 10 rear, but I'm getting carbon rims from China.
What tubeless kit have you used? Any homemade additions to the mixture?
Thanks!
all sticks from flyxii: seatpost 350 (sp-006), just enough for me
stem 90 (st-004), two handlebars: flat 600mm (hb-021) and riser 660mm, saddle (sd-003). Saddle is comfartable (proved by 48m trip), shape the same as mine old "san marco" on other bike.
"No tubes" yellow tape, nippels and sealant.
I have looked at chinese carbon rims, but decided pacenti would be lighter. If you'll test carbon rims and will give positive feedback then my seond wheelset could be carbon.
About to send off bushing measurements to Fox for shock order. I measured 21.7 mm front and 22.5 mm rear. Is that sounding about right? Ordered from Flyxii, and found it interesting that rear bolt doesn't completely clear as it should. Should work fine anyway, but not a perfect fit.
Also, anyone else have the rear derailleur provided not fit as it should on the frame? Not that big of a deal. A grinder should be able to remedy the problem, as it isn't that much off, but just curious.
About to send off bushing measurements to Fox for shock order. I measured 21.7 mm front and 22.5 mm rear. Is that sounding about right? Ordered from Flyxii, and found it interesting that rear bolt doesn't completely clear as it should. Should work fine anyway, but not a perfect fit.
Also, anyone else have the rear derailleur provided not fit as it should on the frame? Not that big of a deal. A grinder should be able to remedy the problem, as it isn't that much off, but just curious.
I don't have a vernier caliper yet but measuring it with tape shows approx. 23mm for both, and the geometry pic states 22.4mm, so in any case I'm getting the 22,20mm 8mm bushings for my CTD shock.
I've got the frame from Baixiang bike, they call it FRX-F09, so it may be slightly different from yours, not sure.
Am thinking of getting one for my wifey in s/m if anyone has one I'd love to give it a ride.
Well she would, doubt it would fit my gigantinormous size.
Done some xc races on the bike now, and about 900km over the last 3 months on it.
Would suit taller riders better I think (say 5"10 up).
Climbs fantastic, very stiff and only a tiny bit of bob, even when fully open on the shock.
Frame is stiff and direct for downhill, steering is precise (especially with carbon wheels). When set up right it's very quick through the twisting stiff, and awesome over loose rocks and rough sections.
Only time there is a compromise is in slower, extremely tight corners (like around a single tree), when the longer wheelbase can be felt.
Done some xc races on the bike now, and about 900km over the last 3 months on it.
Would suit taller riders better I think (say 5"10 up).
Climbs fantastic, very stiff and only a tiny bit of bob, even when fully open on the shock.
Frame is stiff and direct for downhill, steering is precise (especially with carbon wheels). When set up right it's very quick through the twisting stiff, and awesome over loose rocks and rough sections.
Only time there is a compromise is in slower, extremely tight corners (like around a single tree), when the longer wheelbase can be felt.
Hope that helps
I would agree with this.
Only additional i would say is, i feel like you sit on it rather than in it.
Done some xc races on the bike now, and about 900km over the last 3 months on it.
Would suit taller riders better I think (say 5"10 up).
Climbs fantastic, very stiff and only a tiny bit of bob, even when fully open on the shock.
Frame is stiff and direct for downhill, steering is precise (especially with carbon wheels). When set up right it's very quick through the twisting stiff, and awesome over loose rocks and rough sections.
Only time there is a compromise is in slower, extremely tight corners (like around a single tree), when the longer wheelbase can be felt.
I would agree with this.
Only additional i would say is, i feel like you sit on it rather than in it.
Hmm, I've always felt the opposite , coming from the old 26er Anthem I had. You have a medium frame right? Could be a sizing issue if you don't feel "in" the bike
An “open mold frame” is a mold which the factory owns. They can sell that frame to anyone they choose. The brands who buy these open mold frames don’t own or control the design, engineering, or material selection for the products they’re marketing.
On a separate note, my build is coming on great. Should be done in a week or two, provided XX1 is not delayed further. I had some problems with the rear suspension pivots, but these were resolved with some filing and extra washers. Btw the pivots are otherwise really good quality, contain japanese sealed bearings.
I was wondering how it handled under power? Does the rear suspension stay firm when peddling or under load but absorb impacts as it should?
I don't even expected such a nice suspension work from a single pivot system. My weight ( 95kg) and negative chamber of shock allow to provide plush at small roughness, but air pressure in positive chamber and low bike weight gives reliable suspension play at large irregularity (stones, drops). Can't fill torsion impact. Big wheels with full suspension provide smooth downstairs ride
Originally Posted by hidperf
How about money invested? Did you save any money putting it together yourself over buying an equally well equipped assembled bike?
I hope it cheaper, can't compare because don't know direct competitors with such a light 29 wheels (wieght of wheels is very noticable with 29" size, in my case wheels cost a bit more expensive than frame). Firstly, it a fun to build own bike.
Tried lowering the air pressure some more on mine on the weekend. It's getting really dry, dusty and loose here in Aus and I've been a bit nervous on the Flyxii, it gets a bit skittish in loose marble stuff.
Anyway lowered the front to 25psi and rear to 28, totally transformed the bike. Way more grip now, less snappy sliding that's hard to predict
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Originally Posted by raceface_lefty
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