2010 yz450 spring rate

5 replies to this topic
  • 14gon

Posted June 06, 2014 - 05:46 PM


Hi there I have a 2010 yz450, I weigh 138 pounds no gear and have bout 117mm race sag and 35mm static sag, not sure what spring rates I have front and rear maybe stock , I'm a average trail / mx but want to do a bit more mx, what is a good base setup for my quoted measurements , thanks.

  • 14gon

Posted June 08, 2014 - 12:14 PM



  • 14gon

Posted June 11, 2014 - 02:55 AM


Has anyone got any tips I rode it on the weekend and I didn't feel too bad

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  • JLB943

Posted June 11, 2014 - 09:11 AM


Your race(static)sag seems high. It should be 100-105. The spring needs more preload. The stock springs for the bike are actually probably on the stiff side for your weight. Are you sure the springs are stock.

Stock is 0.47 kg/mm up front 5.7 kg/mm rear. Ideally you would want around .44 kg/mm front 5.2 - 5.4 rear.

  • grayracer513

Posted June 11, 2014 - 09:55 AM


Most of the guys who have been successful with the '10-'13's have been running sag numbers in the 105-115 range. 

  • 14gon

Posted June 13, 2014 - 02:46 AM


Sorry everyone I stuffed up, I actually weigh 238 pounds not 138 lol

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