Ryan in PA
This piston worked great but it comes with a copper/gold looking ring and a black ring and didnt say what ring goes where, the copper/gold closest to the top of the piston then black then the small one then the wrinkle oil ring then the other thin silver ring was so hard to figure out which on went where. Other than that, great productRead All Reviews
ROBERT in AZ
I ACTUALLY WASN'T SURE WHEN I BOUGHT THESE I USUALLY USE DEL WEST AND I COUNLD'T FIND ANYTHING FOR THIS KTM. BUT I MUST SAY THEY COME PACKED WELL AND ROCKY MOUNTAIN ALWAYS SHIPS FAST SO IM VERY HAPPY SO FAR ABOUT 40 HOURS OF TESTING AND NO ADJUSTMENT NEEDED SO YEA PRO X VALVES WORK GOODRead All Reviews
Jess in OH
Not sure how long they last, but I had a slow speed high temp ride with two on my quad pulling another quad with two after riding all day and not one time did it slip. Climbs hills like a champ again and no slowing or slipping toward the end of the day. Also the clutch pull didn't seem to change at all even though the springs were definitely stiffer and longer than the stockers.Read All Reviews
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We carry all the engine parts for your ATV, UTV and motorcycle that you would need. Find clutch kits from Barnett, Boyesen, Hinson, Tusk and more. Pick up piston parts from Athena, Cylinder Works Pro X and others. We stock many more engine parts like cylinder kits, valves, shims, tanks, gaskets and many more.
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