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  1. #1
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    2011 XLR 29er Lefty

    Can the travel of this fork be increased to 100mm, or even 110mm? I would like to increase the travel for geometry reasons if at all possible. It will fit my new frame much better this way.

    I just want to make sure I don't have any clearance issues. Has anybody done this?
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  2. #2
    All Lefty's, all the time Moderator
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    Quote Originally Posted by DavidR1 View Post
    Can the travel of this fork be increased to 100mm, or even 110mm?
    I assume it's 90 now?
    This is a Pugs not some carbon wannabee pretzel wagon!!

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  3. #3
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    You can't change the a2c of a lefty and changing the a2c is the only way you'll affect geometry. You'd have to buy a longer lefty to do that.

  4. #4
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    Quote Originally Posted by nathanbal View Post
    You can't change the a2c of a lefty and changing the a2c is the only way you'll affect geometry. You'd have to buy a longer lefty to do that.
    Actually, the 120's you can. They are 140's in short pants really

    If he has a 29ered 120 which would be 90, it can add up to 20mm more travel, with an internal mod.

    If it's a 100 that someone dropped to 70, no can do, stuck with it.
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



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  5. #5
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    The XLR has 90mm of travel.

    So it sounds like I could increase the travel then Mendon? By increasing the travel will it increase the a2c of this fork? This is my goal, just not sure if it will work.
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  6. #6
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    Quote Originally Posted by DavidR1 View Post
    The XLR has 90mm of travel.

    So it sounds like I could increase the travel then Mendon? By increasing the travel will it increase the a2c of this fork? This is my goal, just not sure if it will work.
    Yes, the A to C would increase. The top air piston on the damper has a long throat on it, every bit up to 20 mm you cut off will result in concurrent A to C and travel increases.

    Note that if you don't also change air volume commensurately, it will change how the fork feels. Not a bad thing really, the standard volume reduction for 29ers makes the forks feel too progressive for me personally. I run them travel reduced, with effectively, 26" wheel air volume.
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



    www.mendoncyclesmith.com

  7. #7
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    Quote Originally Posted by MendonCycleSmith View Post
    Yes, the A to C would increase. The top air piston on the damper has a long throat on it, every bit up to 20 mm you cut off will result in concurrent A to C and travel increases.

    Note that if you don't also change air volume commensurately, it will change how the fork feels. Not a bad thing really, the standard volume reduction for 29ers makes the forks feel too progressive for me personally. I run them travel reduced, with effectively, 26" wheel air volume.
    Great news as this is exactly what I'm trying to accomplish

    So 110mm of travel on a 29er will retain adequate clearance then?
    CyclingCentralVa.org

  8. #8
    N2B
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    Can the travel of a 2010 dlr 29er fork also be increased to 100mm ?!

  9. #9
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    Quote Originally Posted by N2B View Post
    Can the travel of a 2010 dlr 29er fork also be increased to 100mm ?!
    What's your travel, 90 or 80. If it's 80, no.
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



    www.mendoncyclesmith.com

  10. #10
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    Off topic but does anyone know if the remote lockout can simply be added to an existing pbr? If so is it simple? Saw a remote lockout on ebay for $160.- was considering getting it...
    "Common sense isn't always that common!"
    Custom Prophet and Custom Delta V

  11. #11
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    Quote Originally Posted by cdalemaniac View Post
    Off topic but does anyone know if the remote lockout can simply be added to an existing pbr? If so is it simple? Saw a remote lockout on ebay for $160.- was considering getting it...
    Yes it can, you need a new top collar, and you need to pull the damper and fully open it up to remove a control piece to do it.

    Oh, and MSRP on that thing is $150....
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



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  12. #12
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    Quote Originally Posted by MendonCycleSmith View Post
    Yes it can, you need a new top collar, and you need to pull the damper and fully open it up to remove a control piece to do it.

    Oh, and MSRP on that thing is $150....
    Ok, then I'll just leave it alone for now...don't feel like taking things apart at this point....thought I can just remove the existing one and attach the remote without removing the cartridge.....
    "Common sense isn't always that common!"
    Custom Prophet and Custom Delta V

  13. #13
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    OK, so I just got a new Flash Carbon 29 (2012). What makes the 90mm lefty different from the 100mm ones on the Scalpels? Sounds like it may be able to be made 100mm?

    Thanks!

  14. #14
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    Quote Originally Posted by mspohn View Post
    OK, so I just got a new Flash Carbon 29 (2012). What makes the 90mm lefty different from the 100mm ones on the Scalpels? Sounds like it may be able to be made 100mm?
    !
    From what Mendon has said, this appears to be the case. Of course you would have to find a capable Lefty technicial to perform the change.
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  15. #15
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    Quote Originally Posted by MendonCycleSmith View Post
    Actually, the 120's you can. They are 140's in short pants really

    If he has a 29ered 120 which would be 90, it can add up to 20mm more travel, with an internal mod.

    If it's a 100 that someone dropped to 70, no can do, stuck with it.
    Howdy! (First post!)
    Does this apply to older 120s and 140s?
    Thanks!

  16. #16
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    Quote Originally Posted by milliken View Post
    Does this apply to older 120s and 140s?
    Older???

    Whatcha got?
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



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  17. #17
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    2009?
    Thanks!

  18. #18
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    Quote Originally Posted by milliken View Post
    2009?
    Thanks!
    Sorry, need more info. Model? Bike its from?
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



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  19. #19
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    This one?
    h t t p ://tinyurl.com/6t229j5

    So, is this ultra a max in short pants?
    In other words, could I set this up to run 110mm for a 29er?
    Thanks!
    (Oh, and I'm the guy that sent you an email about the other day about dropping a Max 140 on a Fisher Ferrous - thanks for your help and info!)

  20. #20
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    Quote Originally Posted by milliken View Post
    This one?
    h t t p ://tinyurl.com/6t229j5

    So, is this ultra a max in short pants?
    In other words, could I set this up to run 110mm for a 29er?
    Thanks!
    (Oh, and I'm the guy that sent you an email about the other day about dropping a Max 140 on a Fisher Ferrous - thanks for your help and info!)
    I would like to know the answer to this question as well. I currently have an Ultra set to 90mm of travel for my 29er and would like to increase travel if possible. Also, will this increase the A to C?
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  21. #21
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    axle to crown is the same reducing travel , so remain the same removing the 2-3 spacers of 10mm

  22. #22
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    Quote Originally Posted by DavidR1 View Post
    I would like to know the answer to this question as well. I currently have an Ultra set to 90mm of travel for my 29er and would like to increase travel if possible. Also, will this increase the A to C?
    Should be able to. A to C will be 500 at 100.

    Don't know yet about the aftermarket availability of the spacer required to make the magic happen though, being new product for this year and all......
    This is a Pugs not some carbon wannabee pretzel wagon!!

    - FrostyStruthers



    www.mendoncyclesmith.com

  23. #23
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    Hi Mendon, do you have the list of which year lefty 29er come with stock spacer which can convert to 26" wheel use?

  24. #24
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    Quote Originally Posted by niamakk View Post
    Hi Mendon, do you have the list of which year lefty 29er come with stock spacer which can convert to 26" wheel use?
    If I understand the question? Any Lefty ever made, that is spaced for 29" wheels, is in fact, a 26" fork. Remove the spacers and it is a 26".
    This is a Pugs not some carbon wannabee pretzel wagon!!

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  25. #25
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    thanks for you info, very appreciated. Which means 2012 lefty 29er actually is a 130mm lefty. Pre 2012 lefty 29er with 90mm is a lefty ultra 120mm travel ? sorry for noob question. just for double check

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