Big Wheel Kit for YZ85

Discussion in 'Pit Bikes & Mini's' started by tnyz80, Jan 4, 2003.



  1. tnyz80

    tnyz80 Rookie DRN Member

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    Does anyone know who produces a big wheel kit for the yz85?


  2. viking20

    viking20 Sponsoring Member

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    Dont know where to buy the wheels at the best price, but on the yz you only need the wheels.The swingarm is only 12-15 mm longer on the big wheel version.The wheel will fit,but you wont have as much room for adjusting the chain as normal,no big deal.When you buy a big wheel bike,the fork and shock springs are stiffer,so a soft spring for the big wheel version will be the spring thats normally on a small wheel version.This is off course only neccescary,if the rider is heavier.The wheels on the rm 80/85 are the same,the rear brake disc is also identical,so you shouldnt have too much trouble finding a set of wheels.
  3. HiG4s

    HiG4s Subscriber

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    Yamaha sells a big wheel version in europe, you should be able to get anything you need from them.
  4. oldguy

    oldguy Always Broken

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    Yamaha does have all the parts available thru them to do the conversion. You would be looking at about $1500 for wheels Swingarm and other assorted parts
  5. olddirtbiker

    olddirtbiker Rookie DRN Member

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    I am in the process of setting one up now. Get a copy of the 2003 Yamaha Off Road Accessories. To save some $$ I reused my hubs( just laced up to new wheels and spokes)In your owner's manual it has the spring rates for the big wheel.Cheap too.
  6. viking20

    viking20 Sponsoring Member

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    Guys,you dont have the big wheel version in the US?We have a small wheel class,8-13 years,c and b level.Big wheels from 10 to 16 years,this is by far the most popular!We dont race 100´s here,Ive always thought our big wheel 80/85´s were 100´s with the 80/85´s engine?
  7. MXP1MP

    MXP1MP Rookie DRN Member

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    You can also get them from yamaha of troy I think I saw the kit for around $1300 call them for the best prices! The website is usually alittle bit higher on price listing.
  8. tnyz80

    tnyz80 Rookie DRN Member

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    Thanks for all the information. It has been very helpful. The forums on this site are some of the most helpful I have ever found. Once again, Thanks.



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