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PistonsYour best source for piston kits and big bore kits at discount prices.

CIRO in CA
Still running the same piston...it has been almost a year and so far no signs of wearing our the piston or cylinder!!!
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ROBERT in AZ
Been using there parts since late 80's never had a problem
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KATHLEEN in MO
Fit and worked fine. Cheaper and easier to come by than OEM.
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Robert in NY
don't reuse the old wristpin, just replace it. Works well, but every time i pull the top end to do rings, i replace all the hardware *gaskets, wristpin, wristpin bearing, circlips, rings* I will buy again
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Robert in NY
it fits into place, and doesn't come off until i take it off. i will buy again
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Mike in ID
I WAS A LITTLE SCEPTICAL ABOUT THIS PRODUCT. HOW COULD MOVING THE MOTOR 2.5mm MAKE THAT MUCH DIFFERENCE? AFTER READING SEVERAL REVIEWS ON LINE AND IN MAGAZINES I DECIDED TO GIVE IT A TRY. I COMBINED THIS PRODUCT WITH A MAXISS EN FRONT TIRE AND WOW WHAT A DIFFERENCE. I AM 250 lbs AND DIDN'T HAVE NEAR THE TROUBLE WITH THE "DARTING" THAT ALOT OF OTHER YZ OWNERS COMPLAIN ABOUT. THIS TOOK ME FROM REALLY LIKING MY BIKE TO LOVING IT. DON'T HESITATE. JUST BUY IT. INSTALL WAS FAIRLY EASY USING THE VIDEO ON THE DRD WEBSITE.
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