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  1. #1
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    Trying out a Lefty on my Ripley

    Hans is going to cringe reading this.... my apologies in advance

    RECENTLY UPDATED.... see my other posts below :-)
    UPDATED AGAIN 9/17/14 - ride review with spacer - see my latest post

    I know the Ripley is HIGHLY RECOMMENDED to have a 51mm offset fork and the Lefty has 45ish mm....but I wanted to try it anyway.

    The AtoC on the Lefty was also 10mm shorter than the Fox 120mm fork spec'd on the Ripley.... so I'm 10mm short on height and 5mm short on offset. Hummmm How will this thing handle???

    All this being said I popped my 2012 Lefty on it (even though I have a 2013 Lefty - more on that later) and rode it today.

    As I anticipated it turned quicker in the tight stuff (a plus in my book) and still remained pretty stable at high speed. I would agree that the spec'd fork height/offset does make for a more stable feel at high speeds (I'm talking like spun out fire road speeds) which I was able to test today... but the Lefty was still plenty stable I thought.

    I feel the 10mm A to C height difference is probably more of an influence and I'm going to see if a custom Lefty steertube adapter (from Project 321) might remedy that...

    I'm going to play around with the air pressure and other settings on the Lefty a bit but so far pretty good. I will need a couple more rides on my local trails to compare a bit more.

    I've eyeballed the new 130 29er Lefty.... but then I lose my 1/2lb weight advantage (over the Fox 120mm 32/29er) and don't need the 130 travel.... yet

    More to come as I get more rides on this setup.... not bad 23.4 lbs with a dropper seatpost Running a mix of XX and XO 1x11

    You see some photos here also.... but uploader is now working....

    What does the race directer ride?? HERE.
    Attached Thumbnails Attached Thumbnails Trying out a Lefty on my Ripley-ripleydrivetrain.jpg  

    Trying out a Lefty on my Ripley-leftyripley.jpg  

    Last edited by CactusJackSlade; 09-17-2014 at 10:11 PM.
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  2. #2
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    Nice.

  3. #3
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    I got tired of waiting for the uploader on this forum to work... you can see my bike photos HERE.

    Cheers!
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  4. #4
    It's the axle
    Reputation: Gregg K's Avatar
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    Wow.

    Someone had to do it. It'll be very interesting to hear how it turns out.

    Do you have a weight on that Lefty?
    Note to self: 85% of FTP for 20 min.

  5. #5
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    Quote Originally Posted by Gregg K View Post
    Wow.

    Someone had to do it. It'll be very interesting to hear how it turns out.

    Do you have a weight on that Lefty?
    2012 Lefty Carbon XLR = 1365 grams
    2013 Lefty Carbon XLR = 1380 grams

    Right at 3.05 lbs.... that is with the remote lockout, but without steertube.

    Add about 160 grams or so for the steertube adapter, depending on how short you cut it.
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  6. #6
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    Would a 29er Lefty fix the Rake and A2C issue?
    I have a 2012 PBR on my 650 MojoSL ...
    I am looking at the Riply and would love to keep a Lefty .. even a 29er Lefty ?

  7. #7
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    Quote Originally Posted by DH_WP View Post
    Would a 29er Lefty fix the Rake and A2C issue?
    I have a 2012 PBR on my 650 MojoSL ...
    I am looking at the Riply and would love to keep a Lefty .. even a 29er Lefty ?
    I doubt it, I think the A2C (Axle to Crown) and offset are the same on all the latest Lefties, but I've only used the longest Lefties available, a 140 XLR or MAX.... I'd think the A2C would be even less on a 100mm 29er specific Lefty.... but don't know that for sure.

    I'm using the 140 travel Lefties and converting them to 29er use by adding travel limit spacers and air chamber volume reducer - this does not change the A2C
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  8. #8
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    I would be looking at a 130mm Lefty 29er ..the new max ones ..the green will match the frame

  9. #9
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    I'm going to revive this thread.... I have updates to report :-)

    I finally had the time to track down a machinist... and better yet one that would work for beer ;-)...

    On my first Lefty mounting, the axle to crown was way low..... add in the axle offest on a standard fork and a Lefty is 45mm instead of the recommended 51mm and it was a crank smacking somewhat twitchy ride.

    REMEDY:

    We ended up making up some spacers that fit nicely onto the Project 321 steer tube adapter just BELOW the bearing cone split ring. I had him make up some 10mm and 12.5mm spacers. This will in essence make the A2C longer.

    The 10mm spacers puts the Axel to Crown (A2C) at slightly higher that a standard Fox 120 fork.... which is 520.8mm. With this adapter it's got an A2C of about 523mm.

    Since the axle offset is the standard 45mm I wanted to go slightly taller to slacken the head tube angle a bit.

    RESULTS:

    It definitely steers quicker that the recommended fork with the 51mm offset.... but it is not twitchy like it was before. After a full ride I was used to it and seemed better at technical climbing. The Ripey Fox fork with the 51mm offset can seem a bit "floppy" in slow technical climbs.

    I LIKE IT. I can say I will definitely be staying with this setup for a while :-)

    Bike weighs 23.5 lbs with a LEV dropper post - not too bad :-)

    If you are interested in a spacer let me know, my buddy will knock one out for a few bucks.
    Attached Thumbnails Attached Thumbnails Trying out a Lefty on my Ripley-headsetspacers.jpg  

    Trying out a Lefty on my Ripley-leftyripley10mm.jpg  

    Trying out a Lefty on my Ripley-10mmheadsetspacer.jpg  

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  10. #10
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    Interesting points to note in this thread:

    1) The black/green Ripley colour, I never used to like. Over time it has grown on me, to the point that I now wish I had bought that colour instead of the blue.
    2) Machinists always work for beer. If they don't, they aren't real machinists.

    Seriously, cool thread. I always dig bicycle experimentation.

  11. #11
    It's the axle
    Reputation: Gregg K's Avatar
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    THANK YOU!

    I am not familiar enough with how the Lefty assembles, so I started to shy away from the fork because of the axle to crown issue.

    Now I'm more interested than ever, since I have a machine shop, and now I see that not only can the axle to crown distance be achieved, but can be adjusted.
    Note to self: 85% of FTP for 20 min.

  12. #12
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    Quote Originally Posted by Gregg K View Post
    .................. I see that not only can the axle to crown distance be achieved, but can be adjusted.
    Yes, exactly. After measuring out everything put together on the bike I think an 8mm spacer would make the Lefty the same A2C as the 120 Fox.

    10mm spacer is what I'm running now. I made a 12.5mm spacer but have not ridden it yet. This will slacken out things a bit... and I like the ride now so it may be some time before I try it.
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  13. #13
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    Ride review!

    Road trip with Ripley set up with my total of 12mm added A2C spacer.

    We did the Interbike Demo Day and I rode it for one lap on the long test loop at Bootleg Canyon (among other bikes I tested of course). Semi technical, bit of moderate DH and some swoopin.

    Rode Goosberry Mesa in St George Utah both North and South Rim. Mostly flat and technical over 60% of the trails... lots of short step ups and climbing bursts... bits of tight and twisty.

    Finally Some of the Kokopelli trails in Fruta CO. Lots of everything.... loose bits of downhill, firm fun swoopin, technical climbs and descents.... everything.

    CONCLUSION:
    I am totally sold. The slightly higher than stock A2C (only 2mm) and the standard 46mm axle offset on the Lefty is fun to ride. Snappier in turns and easier to climb technical stuff with no noticeable degradation in fast downhill stability.

    PLUS I shaved almost a pound off my front end, which undoubtedly adds to the snappy feel and easier climbing in the technical.

    I LIKE IT! :-)

    If anyone wants a spacer, let me know and I will put you in touch with my machinist friend.
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  14. #14
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    Spacers ?

    Quote Originally Posted by CactusJackSlade View Post
    [
    If you are interested in a spacer let me know, my buddy will knock one out for a few bucks.
    Very nice work with those spacers
    Is there any available in 12.5 or 15mm? I want to try that on my 650b/HD with lefty carbon Max.

    Thanks

  15. #15
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    Just replied to you PM.... sorry I was busy the last few days!
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