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  1. #1
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    Forks: Complete Axle to Crown Lengths Library

    I spent some time talking with different manufacturers about Axle to Crown Lengths. Unfortunately they dont all follow a standard, so changing from Brand A to Brand B of the same travel, can have more effect on handling than just the dampening characteristics. You could have as much as 1/2 degree variation in head tube angle using different brands with the same travel. FOR ESTIMATING PURPOSES ONLY: Typically you can estimate a 0.5 degree (1/2 degree) change in Headtube Angle for every 10mm of Axle to Crown Length changed.

    Below is a list of Manufacturers Specified Axle to Crown Lengths. It would be great if anyone would measure their fork and list the length so it can be added in parenthesis so we can see what the margin of variance actually is. The next post gives directions on how to measure Axle to Crown Length on your fork.

    Please Copy and Paste the following information into your reply and fill it out completely.

    Manufacturer:
    Model Year:
    Model:
    Travel:
    Axle to Crown Length:
    Custom Work: (PUSH Industries, Garage Works, Hippie Tech, etc.)


    THIS IS NOT A COMPLETE LIST, I WILL BE ADDING TO IT FOR THE NEXT COUPLE DAYS. 29er forks and listings from DT swiss, White Bros and Maverick coming.

    FOX Fox Racing Shox Website
    Current Model Year Unless Noted Otherwise

    All models +/- 5mm

    32mm Forks

    F80: 450.9mm
    F90: 460.9mm
    F100: 470.9mm
    F120: 490.9mm

    Float, Talas, Van 130: 500.9mm
    Float, Talas, Van 140: 510.9mm (08 Talas: 515mm)
    Talas 150: 520.9mm

    36mm Forks

    Float, Talas, Van 160: 545.3mm

    40mm Forks

    Fox 40 180: 545.8mm
    Fox 40 203: 571.2mm

    ROCKSHOX RockShox website Axle to Crown Chart
    Current Model Year Unless Noted Otherwise

    All models +/- 5mm

    28mm Forks

    99-08 SID 63: 434mm
    99-08 SID 80: 451mm

    32mm Forks

    Argyle 80: 471mm
    Argyle 100: 491mm

    SID 80: 453mm
    SID 90: 463
    SID 100: 473

    Dart 80: 454mm
    Dart 100: 471mm
    Dart 120: 501mm

    Tora XC/SL/RACE 80: 450mm
    Tora XC/SL/RACE 100: 470mm

    Tora AM 80: 459mm
    Tora AM 100: 479mm
    Tora AM 120: 499mm
    Tora AM 130: 509mm

    Recon XC/SL/RACE 80: 451mm
    Recon XC/SL/RACE 100: 471mm

    Recon AM 80: 459mm
    Recon AM 100: 479mm
    Recon AM 120: 499mm
    Recon AM 130: 509mm

    05-08 Reba 85: 458mm
    05-08 Reba 100: 473mm
    05-08 Reba 115: 488mm

    Reba 80: 453mm
    Reba 100: 473mm
    Reba 120: 493mm

    06-08 Revelation 100: 478mm
    06-08 Revelation 115: 493mm
    06-08 Revelation 130: 508mm

    Revelation 140: 521mm
    Revelation 140 w/Maxle Lite: 518

    Pike 95: 473mm
    Pike 140: 518mm

    Boxxer Ride 130: 494mm
    Boxxer & Ride 174: 544mm
    Boxxer 200: 568mm

    35mm Forks

    Domain 115: 500mm
    Domain 160: 545mm
    Domain 180: 565mm

    Lyrik 115: 500mm
    Lyrik 160: 545mm

    40mm Forks

    Totem 135: 530mm
    Totem 180: 565mm

    MAGURA Magura Website
    Current Model Year Unless Noted Otherwise

    All models +/- 5mm

    32mm Forks

    Odur 85: 458mm
    Odur 100: 473mm

    Menja 85: 458mm
    Menja 100: 473mm
    Menja 130: 498mm

    Durin 80: 453mm +/-3mm
    Durin 100: 473mm +/-3mm
    Durin 120: 493mm +/-3mm

    Thor 140: 520mm

    36mm Forks

    Wotan 160: 540mm

    MANITOU Manitou website
    Current Model Year Unless Noted Otherwise

    All models +/- 5mm

    32mm Forks

    R7 80: 456mm
    R7 100: 476mm

    Minute 100: 478mm
    Minute 120: 498mm
    Minute 130: 508mm
    Minute 140: 515mm

    Nixon 145: 518mm
    Nixon 160: 540mm

    Gold Label 80: 460mm
    Gold Label 100: 480mm

    34mm Forks

    Travis Single 180: 572mm
    TravisTriple 180: 562mm
    TravisTriple 203: 585mm

    MARZOCCHI Marzocchi website Axle to Crown Chart
    Current Model Year Unless Noted Otherwise

    All models +/- 5mm

    28mm Forks

    TXC 60: 466mm

    32mm Forks

    22 100: 479mm
    22 120: 499mm

    33 80: 447mm
    33 100: 467mm
    33 120: 487mm

    44 120: 487mm
    44 140: 507mm

    4x 100: 490mm

    Corsa 100: 467mm

    DJ 100: 490mm

    35mm Forks

    55 160: 541mm
    55 ATA Micro 165: 546mm

    38mm Forks

    66 180: 564mm

    888 200: 567mm

    Maverick Maverick Forks
    Current Model Year Unless Noted Otherwise

    32mm Forks

    SC32: 495mm

    DUC32: 520mm
    Last edited by mxracer33x; 11-26-2008 at 09:32 PM.

  2. #2
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    How to Measure your Axle to Crown Length:

    It is preferable to measure in millimeters, but anything you have can be converted with decent accuracy.

    First remove the front wheel and place your thru-axle or quick release back in the fork. Pull on the lowers to make sure they are fully extended, sometimes stiction will occur and your measurement wont be accurate.

    Measure from the top of the crown (bottom of Headset race), behind the Arch on the lowers, and to the center of the backside of the Axle. This should give you a measurement accurate within a couple millimeters.





    Last edited by mxracer33x; 11-18-2008 at 01:35 PM.

  3. #3
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  4. #4
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    look on the sram website on the manufacturer section and you'll have all the RS ones

  5. #5
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    Yeah but the Sram site is way out dated for the most part. That is one of the problems I found. Ive got most of the current ones, just got a bit to get done before I can get back to filling in the blanks.

    Edit: I just saw at the very bottom of the list is the full chart of just A2C lengths. RockShox A2c Chart
    Last edited by mxracer33x; 11-18-2008 at 01:50 PM.

  6. #6
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    Thank you so much mxracer33x !!! This is Great. U just save me a lot of time
    searching for this info as i am buying a new fork. Btw, real nice bike u got there !!

  7. #7
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    this would make a good sticky

  8. #8
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    Good thread. How about some data on the cheaper forks that people would be upgrading from?? You've got the Darts covered, but how about Suntour, etc.
    Originally Posted by Vtolds/Dremer03---- "assume any bikes left unlocked and unattended are free to take"

  9. #9
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    Some more a2c info is available here: http://www.velik.org/components/com_...le=AxleToCrown

    upd: url fixed

  10. #10
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    Quote Originally Posted by Noobi-Wan Kenobi
    Good thread. How about some data on the cheaper forks that people would be upgrading from?? You've got the Darts covered, but how about Suntour, etc.
    don't take this the wrong way, but if you have a suntour than don't worry about the axle to crown height as it has not as much of an importance

  11. #11
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    a2c

    Quote Originally Posted by Curious-George
    don't take this the wrong way, but if you have a suntour than don't worry about the axle to crown height as it has not as much of an importance


    Well, since all forks have an axle to crown height, I have to disagree with your statement. Maybe I just don't understand what you are trying to say. Please explain.

    Actually, we should leave this thread free of this kind of discussion and let it be a gathering of data, so don't explain.
    Originally Posted by Vtolds/Dremer03---- "assume any bikes left unlocked and unattended are free to take"

  12. #12
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    Absolutely Bloody Marvelous!!! Brilliant Work!!!

  13. #13
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    Cool thread. Very helpful.
    roccowt.
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  14. #14
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    Cool and great Thanks!

    Totems are 40mm btw.

  15. #15
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    Quote Originally Posted by dirtbag
    Totems are 40mm btw.
    Thanks! Its easy to miss that stuff when your going down the list.

    Hopefully Ill get teh 29er stuff and a coupl more manuf. done friday. If not early next week for sure.

  16. #16
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    Thanks for this!

  17. #17
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    Quote Originally Posted by Curious-George
    don't take this the wrong way, but if you have a suntour than don't worry about the axle to crown height as it has not as much of an importance
    So you are saying that a person upgrading from a 100mm suntour fork does not really need to care what the axle to crown figure of the old fork was when selecting a new one?

    I guess that goes for Marzocchi now too...

  18. #18
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    Sorry to see that DT Swiss didn't make the list.

  19. #19
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    Quote Originally Posted by other aardvark
    Sorry to see that DT Swiss didn't make the list.
    My DT Swiss EXC 150 20mm TA is 520mm (so slightly less then the official reading). Others have given the same number.

  20. #20
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    Quote Originally Posted by dropadrop
    My DT Swiss EXC 150 20mm TA is 520mm (so slightly less then the official reading). Others have given the same number.
    How are you going with EXC, worth the money???

  21. #21
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    Quote Originally Posted by other aardvark
    How are you going with EXC, worth the money???
    It's still in the box... Hopefully I'll get it togeather today, and get to ride on the coming weekend.

  22. #22
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    Quote Originally Posted by dropadrop
    It's still in the box... Hopefully I'll get it togeather today, and get to ride on the coming weekend.
    They certainly look fantastic and Im hoping they perform as good as they look cause the light weight could put my Nomad in the sub 30 pound category.Pm me on how it goes.

  23. #23
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    nice.

    great reference chat, just what I was looking for. thanks!!

    this would be a good sticky

    Porch
    "If we were Vikings, Rocky Mountain aspen stands would be our Vahalla and its singletrack our bounty" - Mtn Flyer Mag #14

  24. #24
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    Why isn't this stickied? It's super useful, yet it was almost hard to find...
    Axle Standards Explained

    Founder at North Atlantic Dirt, riding & writing about trails in the northeast.

  25. #25
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    sweet thread! really helpful for anyone looking to get a fork compatible with their frame, or vice versa. +1 to the idea of this being a Sticky.
    Go ride your bike.

  26. #26
    wuss
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    When this thread was written the info was hard to find, now google will give this list from 50 different places if you search for it.

  27. #27
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    Yeah, but I want it in one place...
    Axle Standards Explained

    Founder at North Atlantic Dirt, riding & writing about trails in the northeast.

  28. #28
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    Anybody have measurements on the manitou 29ers? Can't find them anywhere.

  29. #29
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    Stole this from RideMonkey. Some over lap but it had an older fox that I was looking for.

    Quote Originally Posted by Superdeft View Post
    This might help:


    2007 Models Axel to Crown

    Corsa WC 80mm 464mm
    Corsa WC 100mm 474mm
    XC700 SL 464-504mm
    XC600 474mm
    XC500 474mm
    Z1 RC2 538mm
    Drop Off 3 538mm
    AM SL 1 511-551mm
    AM 2 531mm
    AM 3 531mm
    4X WC ?
    DJ 1 483mm
    DJ 2 483mm
    DJ 3 483mm
    Dirt Jam Pro 483mm
    66 SL 1 ATA 525-565mm
    66 RC2X 565mm
    66 RC2 ETA 565mm
    888 WC 584mm
    888 SL ATA 554-584mm
    888 RC2X VA 584mm
    888 RV 584mm
    Super T RCV 574mm
    MX Pro ETA 508mm
    MX Pro ETA 488mm
    MX Pro 488mm
    MX Pro 468mm
    MX Comp 1" 468mm
    MX Pro I.S. 488mm

    CANNONDALE

    lefty 140 spv : 510 mm

    FOX

    vanilla R 2005: 510 mm
    Talas RL 2004: 490 mm
    Talas RLC 2006: 503mm
    vanilla 2004 un peu moins de 500 mm
    Float 80mm : 451mm
    100mm : 471mm


    36 Talas(2006) en 150mm : 535mm
    en 110mm : 495mm
    36VAN RC2 (2006) en 160: 545mm
    40 (2006) : en 178mm : 546mm
    -------------- en 203mm : 571mm

    MARZO

    Z1 130mm drop off QR20: 503mm (2001)
    Z1 FR SL (2003) 530 mm
    Z1 FR 130 (2005): 518mm
    Z1 FR 150 (2005): 538 mm
    Z1 MCR (2001)130: 510mm
    Z1 LIGHT ETA 150mm (2006): 538.5mm
    Z3 Flylight 100mm (2000): 500mm
    Z5 air en 100 (2001): 478 mm
    888 (2005) en 200mm, 605mm
    888 (2005) en 170mm, 575mm
    888 (2006) en 200mm: 579mm
    66 (2005) en 170mm, 595mm
    66 (2005) en 150mm, 575mm
    66 (2006) en 170mm: 555mm
    66 (2006) en 150mm: 535mm
    Marathon S millésime 2002 100mm -> 480 mm
    Marathon S 120mm (2005): 495mm
    Marathon XC 120mm 2005: 495mm
    MX Comp en 105mm: 478 mm
    MX Comp en 105mm (2006): 484.3mm
    MX Comp en 120 mm : 493 mm
    MX Comp en 120mm (2006): 499mm
    MX Comp en 85 mm : 458 mm
    MZ comp en 100 mm: 488 mm
    EXR PRO en 105 mm: 478 mm
    EXR PRO en 120 mm: 493 mm
    all mountain 110 498mm
    all mountain 130: 518 mm
    all mountain 150 (2005): 538 mm
    all mountain 150 (2006): 541.5mm
    DJ2 2004 = 500mm
    DJ en 100 mm (2005): 488 mm
    DIRT JUMPER (2006) en 100mm: 483.5mm
    shiver sc 120 mm : 510 mm
    shiver DC: 572mm
    Junior T 2003/2004/2005: 555mm
    Junior T 2001 = 540mm
    Monster en 200 mm: 595 mm

    ROCK SHOX

    pike: 517mm
    Lyric en 160mm: 545mm +/- 5mm
    Domain en 180mm: 565mm +/- 5mm
    Totem en 180mm: 565mm +/- 5mm
    Reba 85mm: 458mm
    Reba en 100 mm : 473 mm
    reba 115mm: 488mm
    Boxxer 04 (178mm de débattement), 555mm en position basse
    Boxxer 2005 race, team et world cup en 203mm : 570mm en position basse
    Psylo SL uturn : 510 mm
    Duke XC 80 mm 2004 : 460 mm
    Duke C (année inconnue) 80 mm de dbt : 440 mm
    Pilot en 100mm : 475mm
    SID RACE 80mm: 442mm
    SID SL 2001 80mm: 450mm
    SID 1998 63mm : 435mm
    Revelation 130mm (2006): 508mm
    Revelation 100mm (2006): 478mm

    PACE

    Distance RC 39 modèle 2005 en 100 mm: 470mm
    RC41 Fighter en 150mm 2006: 524mm


    MANITOU

    Axel Elite 100mm : 480mm
    Skareb Super TPC 100mm (modéle 2005): 475 mm
    Black Platinum (Reglage maximum):515mm
    black comp 2002: 475mm en debat 100mm
    Stance Flow:502/532mm
    Stance Kingpin: 540mm
    Stance Static 80mm: 460mm
    Stance Static 100mm: 480mm
    Dorado DH: 542.5mm
    Sherman Breakout Plus: 512/552mm
    Sherman Flick Plus: 492/532mm
    Sherman Firefly Plus: 492/532mm
    Sherman Jumper: 455mm
    Sherman Jumper 110mm : 480mm
    Sherman Slider Plus: 540mm
    Nixon Platinum/Super/Elite: 518mm
    Minute 1/2/3: 505mm
    Minute 3 (en 100mm): 470 mm
    Millenium: 505mm
    Splice 100 mm: 505mm
    Splice Elite 130mm : 525mm
    R7 (2006) en 100mm: 470mm


    MAGURA

    Big Ego en 185 mm : 580 mm
    Thor en 150 mm : 535 mm
    Ronin en 110 mm : 483 mm
    Phaon en 125 mm : 504 mm
    Asgard en 100 mm : 476 mm
    Asgard en 80 mm : 456 mm
    Vidar en 80 mm : 456 mm
    Quake 115 double té: 525 mm
    Whats this line for?

  30. #30
    gmk
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    some measurements are really not correct

    "Show your bike some love and it will show the love back."
    Eric, niner bikes

    the most important vehicle is a 29er bicycle

  31. #31
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    Quote Originally Posted by gmk
    some measurements are really not correct
    Well thanks for correcting them...

  32. #32
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    2011?

    Fox 32 150MM
    Rockshox revelation 150mm?

  33. #33
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    When switching from a rigid traditional fork to a suspension fork am I correct in assuming I should remove the recommended sag height % mm's to match my existing geometry? My head is spinning.

  34. #34
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    Quote Originally Posted by Nsynk
    2011?
    Rockshox revelation 150mm?
    529 according to BTI
    Last edited by e-luder; 09-18-2010 at 10:23 PM.
    Whats this line for?

  35. #35
    wuss
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    Quote Originally Posted by dbtahoe
    When switching from a rigid traditional fork to a suspension fork am I correct in assuming I should remove the recommended sag height % mm's to match my existing geometry? My head is spinning.
    Pretty much yes. Even after this the geo will be slightly changed as there are a lot of situations where you are actually leaning on the fork making it compress further then sag.

  36. #36
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    150mm to rigid question..

    I'd like to get a rigid fork for my Evil Sovereign (26" hardtail). I currently run a 150mm Fox Float on it. Would I be better off looking for a 29er fork? Or does anyone make a rigid fork that would keep essentially the same geo of my current setup?

  37. #37
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    The 29er models are 30mm longer a2c than a 26in model with the same travel.

    Looking through all the spec sheets, it appears that the values do not change from 2007 to 2011 for Fox, so the values posted in this thread for Fox should be valid no matter what year you have (as long as its from 2007 to 2011).

    All Fox 26in 32mm forks (F-Series, FLOAT, TALAS, Vanilla) are 370.9mm plus travel a2c:
    http://service.foxracingshox.com/con..._SPEC_RevA.pdf

    All Fox 29in 32mm forks (F29, TALAS 29) are 400.9mm plus travela2c:
    http://service.foxracingshox.com/con..._SPEC_RevA.pdf

    All Fox 36mm forks are 385.9mm plus travel a2c:
    http://service.foxracingshox.com/con..._spec_revb.pdf
    http://service.foxracingshox.com/con..._SPEC_RevA.pdf
    http://service.foxracingshox.com/con..._SPEC_RevA.pdf

    Fox 40mm forks (2007 & 2011):
    http://service.foxracingshox.com/con..._spec_revb.pdf
    http://service.foxracingshox.com/con..._SPEC_RevA.pdf

    Specs for all Fox shocks for 2007 to 2011 are available at the Fox Help tech info center:
    http://service.foxracingshox.com/consumers/index.htm
    Last edited by kirkbrode; 06-01-2011 at 09:36 PM.

  38. #38
    "El Whatever"
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    Quote Originally Posted by ronabrandt View Post
    529 according to BTI
    Confirmed, according to my tape measure.
    Check my Site

  39. #39
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    Quote Originally Posted by kirkbrode View Post
    Looking through all the spec sheets, it appears that the values do not change from 2007 to 2011 for Fox, so the values posted in this thread for Fox should be valid no matter what year you have (as long as its from 2007 to 2011).

    All Fox 26in 32mm forks (F-Series, FLOAT, TALAS, Vanilla) are 370.9mm plus travel a2c:
    http://service.foxracingshox.com/con..._SPEC_RevA.pdf
    I do not believe this is right, I am pretty sure that for a Fox 32 140 mm a-c is 525 mm if you rely on most of the geometry chart for bike with 140 mm forks equipped with Fox, it would be 511 iaw what you posted.

    I was looking for a Fox 150 mm too, might it be 535 mm?

  40. #40
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    Quote Originally Posted by crips View Post
    I do not believe this is right, I am pretty sure that for a Fox 32 140 mm a-c is 525 mm if you rely on most of the geometry chart for bike with 140 mm forks equipped with Fox, it would be 511 iaw what you posted.

    I was looking for a Fox 150 mm too, might it be 535 mm?

    I have seen those numbers before too.. (525mm a-c for a 140 mm travel shock) on bicycle manufacturer's geometry charts. I could be wrong but that may be for a fully extended/un-compressed fork (i.e. w/out sag), which is not a functional a-c length since that is not where the shock is when u ride the bike. And/or maybe the bike geometry charts include headset? I'm not sure where the discrepancy comes from.

    Did u look at the spec sheets provided by Fox? Fox's spec sheet says a-c (dimension A) for a 32mm fork w/ 140mm of travel is 510.9mm (370.9+140) +/- 5mm, and 520.9mm (370.9+150) for a 150mm travel fork. I assumed this is at sag, but not totally sure on that. Note 2 does say "based on medium rider weight air pressure setting". Pressure would make no difference for a fully extended/un-compressed shock, so there is slight implication that dimension A is at sag.

    Do not take my word for it. Look at the drawings and develop your own conclusions.

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    From Turner's website regarding the 2011 5.Spot geometry:
    "{ Listed geometry based on a 525mm axle to crown fork with a 26"x2.3" tire, acceptable fork travel range: 130-160mm }"

    Turner's 2011 build kits for the Spot include a Fox 150mm travel fork. This is where I saw 525mm, so it was for 150mm fork, not a 140mm. So the difference is only 5mm, and it falls w/in the 520.9 +/-5mm range. Anyway, I imagine Fox's engineering drawings are more precise than Turner's foot note is intended to be, so I'm sticking with 520.9mm for a Fox 32 150.

  42. #42
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    Quote Originally Posted by kirkbrode View Post
    I have seen those numbers before too.. (525mm a-c for a 140 mm travel shock) on bicycle manufacturer's geometry charts. I could be wrong but that may be for a fully extended/un-compressed fork (i.e. w/out sag), which is not a functional a-c length since that is not where the shock is when u ride the bike. And/or maybe the bike geometry charts include headset? I'm not sure where the discrepancy comes from.

    Very few manufacturers include sagged dimensions... and giving sagged dimensions can be argued as useable as everybody uses different sag and in the end, manufacturers may go for a happy medium or the max length in the industry. That is RS, whose forks are 10mm longer than Fox'

    Quote Originally Posted by kirkbrode View Post
    Did u look at the spec sheets provided by Fox? Fox's spec sheet says a-c (dimension A) for a 32mm fork w/ 140mm of travel is 510.9mm (370.9+140) +/- 5mm, and 520.9mm (370.9+150) for a 150mm travel fork. I assumed this is at sag, but not totally sure on that. Note 2 does say "based on medium rider weight air pressure setting". Pressure would make no difference for a fully extended/un-compressed shock, so there is slight implication that dimension A is at sag.

    Do not take my word for it. Look at the drawings and develop your own conclusions.
    Sag for a 140mm fork is 35mm @ 25%. So, a sagged 140mm fork that is 525mm A2C should be 487mm. So, it is definitively not a sagged dimension... unless they mean 10% that gives you 511mm.

    Fox Floats (I don't know and I don't want to guess for TALAS) have a coil negative spring. So, theoretically, if you pump enough you can compress the negative spring and hence, extend the fork. Worth the 10mm??? Who knows?

    I think Fox drawings should be correct (because frame manufacturers have to design around them) and they're indeed shorter. But best bet is for someone who has one of the thousands of units sold to date pulls out a tape measure and tell us which is correct.

    I did for my Revelation 150mm and it's inside tolerance for RS spec @ 530mm (527 is spec'ed)

    My 2008 160mm Nixon is 545mm. 5mm longer than spec'ed.
    Check my Site

  43. #43
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    It would still be awesome for someone who has one to pull out a tape measure and measure it, as Warp said.

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    To clarify this situation I sent an email to Fox and the reply was as follows:

    Fox 140mm: 510mm
    Fox 150mm: 520mm

    therefore I guess that 525mm for a 140mm fork is including headset lower stack height.

    So is there a difference of 19mm between a Fox 140mm and a RS Reveletion 150mm forks?

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    Quote Originally Posted by crips View Post
    To clarify this situation I sent an email to Fox and the reply was as follows:

    Fox 140mm: 510mm
    Fox 150mm: 520mm

    therefore I guess that 525mm for a 140mm fork is including headset lower stack height.

    So is there a difference of 19mm between a Fox 140mm and a RS Reveletion 150mm forks?
    Double verify the 140 Fox.

    I have a 2008 140mm Talas and I get 510 (511 could be) with forks at full extension. Fox is right on the money.
    2013 Banshee Spitfire V2 650b

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    The a/c of the 2010 Rock Shox Recon Race RL 26er is 470mm...according to the stats on my Black Forest from the Focus website.

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    Are the AC lengths for the 2011 RS Revelation 150 different between the 15mm axle and 20mm axle versions? Does anyone have the lengths handy?

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    I would imagine no difference in ac length between a 15 $ 20mm axle because you measure at the center of the axle.


    My question is how much does the wheel base change with the change in head angle? Anyone know?

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    Fork suggestion for an old SC Blur?

    New to the forum and looks like I found the right thread. Hoping maybe someone can suggest a fork (something a few years old that I might find online) for a 2002 Blur (I guess they call it a "classic" these days). I don't even know where to begin when it comes to sizing the thing, and I need something quick to replace the original Marz I bought it with (drop outs cracked), but don't want anything too spendy as I'm hoping to get a new bike in 6 months. Anybody have some advice? Thanks.

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    Quote Originally Posted by Noobi-Wan Kenobi View Post
    Good thread. How about some data on the cheaper forks that people would be upgrading from?? You've got the Darts covered, but how about Suntour, etc.
    Manufacturer: Suntour
    Model Year:2011
    Model:XCR-LO-29
    Travel:100mm
    Axle to Crown Length: 536mm

    I measured mine at 53 centimeters then found it listed here at 536 mm.
    SR Suntour XCR Suspension Fork 100mm 29" Black 1 1/8" Threadless - New York's Oldest and Largest Bike Store

    Good thing I found this thread. I was looking at ordering a 100 mm fox to replace it. It looks Like I may snag a Fox 29er Talas 140mm and be much closer to maintaining the original handling Characteristics

    Sounds like the statement about no need to list a cheap fork that someone would actually upgrade from was incorrect. If I simply went with a 100mm Fox thinking it would be close I would be like 40mm shorter.
    Marin 29er
    "Try not to ride too long you might end up burning muscle!"
    http://www.beeftrain.com/

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