fork height

4 replies to this topic
  • ltrosson

Posted January 21, 2010 - 08:57 PM


Need a little help, 08 450, is raising the forks up to the first line on the fork tube approx. 5mm. and is sag at 108 approx. 4.25 inches. Just had suspension done and these are the starting recommendations. thanks alot

  • grayracer513

Posted January 21, 2010 - 09:17 PM


The conversion form metric to English is based on 1" = 25.4mm. 4.25" is 107.95 mm. You should be able to measure the fork yourself, but yes, the first machined groove is at 5mm.

If you have any complaints regarding understeer (front end push) on corner entry, try less sag, like about 98mm.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • ltrosson

Posted January 21, 2010 - 09:36 PM


Thanks Grayracer,with sag at 98 do you suggest raising the fork tubes 5mm?

  • grayracer513

Posted January 21, 2010 - 09:45 PM



  • YamaLink

Posted January 22, 2010 - 08:24 AM


Yeppers. Set (or in your case, reset) sag and THEN make changes to the forks. And properly torque those fork bolts; too tight, especially the lower ones.

Related Content


Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

The "going back to the other darkside" adventure... by Monk

Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  113 replies

James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.