2012 wr450 front/rear springs

6 replies to this topic
  • xXNewfie709Xx

Posted December 21, 2012 - 01:58 AM


Hey all,

My friend is looking for a stronger spring for his WR. He is a heavier man weighing almost 300LBS. Does yamaha offer one from factory? Thanks!

  • Jrbuete

Posted December 21, 2012 - 06:08 AM


Check out Race Tech at www.racetech.com. They have everything from a spring rate calculator for front and rear springs to offering full rebuilds.

  • JDLowrance

Posted December 22, 2012 - 08:43 AM


Factory Connection can hook you up with a 6.7kg/mm shock spring and .50kg/mm fork springs.

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  • Navaho6

Posted December 25, 2012 - 06:01 AM


I suggest that you talk to a tuner. I have had bad luck with the spring rate calculator. Previous post recommended .50 springs. I use .49 on my bike (2006 WR), and I am only 165 lbs. I know the 2012 is a different animal, more similar to a YZ than the old WR's. Your tuner will take into consideration your skill level, terrain and intended use.

Edited by Navaho6, December 25, 2012 - 06:01 AM.

  • JDLowrance

Posted December 25, 2012 - 07:28 AM


I agree with the previus poster that you should use the spring calculators with a grain of salt.

I'm 250lbs without gear and run the spring rates I suggested earlier on my YZs and WRs. These spring rates work for my weight and the agressive type of riding I do (don't race anymore).

At 300lbs without gear these springs would be inadequate at a raceish type pace but are readily available and would make for a much nicer trail riding experience than the stock springs. I should have asked how the bike will be used...I assumed at a nice trail pace.

Cannon race craft can set you up with stiffer springs if so desired but I would definitely inquire with a well known suspension tuner beforehand. Keep in mind that no matter how good the intentions, some suspensiion tuners actually make things worse.

Good luck.

  • jraffety

Posted December 26, 2012 - 07:19 AM


I'm riding at 290lbs on 2011 WR450. I'm using racetech 6.4 shock and .54 fork springs. One word of caution, don't just replace the spring - these spring rates for us big guys are so high that you really have to have a tuner setup the damping to go with it. With just the spring and factory damping you'll be too stiff for the clickers to do much good - I learned the hard way. Took it to a local highly recommended tuner and its a different bike.

  • xXNewfie709Xx

Posted December 30, 2012 - 06:39 PM


Thanks for the info guys. And yeah mostly trail riding not racing.


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