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Discussion Starter · #1 · (Edited)
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
 

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Discussion Starter · #2 · (Edited)
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.





 

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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 !!
 

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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.
 

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Noobi-Wan Kenobi said:
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
 

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a2c

Curious-George said:
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.
 

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Curious-George said:
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? :rolleyes:

I guess that goes for Marzocchi now too...
 
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