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Cylinder Works

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Cylinder Works Power Valve Kit
David in TX
Better/ cheaper than oe
Better than oe, goes back to the original one that yamaha used that didn't break off so easy.
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Cylinder Works Standard Bore Cylinder Kit
Gary in AZ
Perfect fit replacement.
So far, so good. Excellent fitment, can't tell you about longevity as the bike has not been ridden for many hours. But appears to be a quality replacement.
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Cylinder Works Big Bore Replacement Top End Gasket Kit
Caleb in LA
Nice quality and nice fit.
I bought the big bore kit for the WR250F. The whole kit fit very well, and it gave nice low end power to my bike. The gasket fits great with no leaking and has been solid for the past 5 months of riding. I also bought an extra gasket in case I need to do any major engine work. It's always a good idea to keep a set of engine gaskets ready.
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Cylinder Works Standard Bore High Compression Replacement Vertex Piston Kit
Ryan in OR
Great choice for a piston!
Runs awesome in my crf250x! Seems very high quality. It was a pretty simple plug and play install.
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Cylinder Works Standard Bore High Compression Cylinder Kit
Zac in UT
New top end
It worked perfectly on my 2018 yz450f bike runs great now!
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Cylinder Works Big Bore Cylinder Kit
Ron in CO
Go big
Great upgrade for my 2014 FE350. Noticeable power increase. Great fitment to the stock lower.
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