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Engine Valves and Shim KitsValves and Spring Kits. High quality stainless steel intake and exhaust valves will restore performance and durability. Titanium Valves are also available. Find a great selection from brands like Kibble White, ProX, Faction and more for your Honda, Yamaha, KTM, Kawasaki and Suzuki.

CHRISTEL in CO
Working great so far, 4 months of riding and no shims. I was shimming the OEM valves every other ride and replacing the valves in less than 3 months.
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Jared in MT
Bought these for my 06 crf450r and 3 of the 4 were great but one would not let the shim seat in. Tried multiple new shims (hot cams). made it work but took some time.
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Frank in IL
Didnt last one season of trail riding before the stem snapped and destroyed my motor.
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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 GOOD
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STEVE in UT
I love these valves. They are true to size and wear very well. Buy with confidence.
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