2005 Yamaha YZ85 Dirt Bike Pistons
Select Your RideGo
Narrow Your Results
Wiseco Pro Lite Piston Kit Available for both two stroke and four stroke bikes, the Wiseco Pro Lite Piston Kit is both a great OEM alternative and an easy way to boost the power. Choose stock bore siz
Wiseco Top End Kit Wiseco-forged high-silicon aluminum alloy pistons are computer-machined to exacting tolerances Designed for greater strength with reduced weight and improved heat transfer Piston k
Namura Technologies Top End Repair Kit Namura Technologies piston kits are direct replacements for OEM piston with no modifications or dimensional adjustments needed. Combine this with the MOS2 coatin
Vertex Piston Kit
Restore that crisp clean power that your dirtbike or quad use to have with a new Piston Kit from Vertex. Or step up the power with a high compression Piston Kit, All kits ar
Wossner Piston Kit Wössner (pronounced Werssner) Pistons, Germany's finest aftermarket forged piston company brings precision and quality to North America. Top European racers and FIM World Champions
Moose Racing Cast PistonGravity cast aluminum alloy with 18% silicon to increase resistance to wear and decrease thermal distortion, thus providing a longer piston life Coated skirts ease break-in, d
Patrick (Baton Rouge, LA)
Huge glob of epoxy hanging around tip of magnet. Ordered it for a specific model and it does not fit. It is an M10. Should be an M8. Would use it even if it did fit. Worried about epoxy breaking off and churning around in motor.
Replaced the top end on my 96 cr125r! Fit great perform well but the price is the problem. For 70-80 bucks they'd be perfect!
Hammerhead Engine Plugs
These fit perfect, and look great on the bike!! They do not come with O rings so you will have to use your oem ones or buy new ones but they are only a couple bucks- definitely worth the money.
Cooper (Russellville, IN)
I put it all together very easily, but it blew up in less than 24 hours of installation!
I had this athena kit on my 2003 yz125 and the bike ripped. Probably was the fastest 125 Ive owned and it ran stock exhaust only other engine mod was vforce reed. I called it the blue demon :p
Ordered my wiseco bottom end kit and everything fell together. Fired up second kick, now first time everytime! I will run it very gently, because that is absolute key in a good engine as some do thrash and wonder why the cranks snapped or flattened bearings!!