want reliability and power replace your worn valves with KIBBLEWHITE valves and springs! you will increase the time between valve shimmings and spend more time riding.
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Just another quality part from Kibblewhite, what more can you say.
Fast shipping and easy to order!
The neck of the valve severed about 60hrs in and gernaded the whole top end. DO NOT BUY
got these for a 07 crf450. had been using another brand of SS valve. These are very nice. easy install once you get the head off with the correct tools. From other reviews I have high hopes of putting some hours on these without issue
A friend of mine and I both installed the over sized intake and exhaust valves with great power results, but the down side is that we had too aggressive of a cam. We both snapped off one of the intake valves. We are both running 9i cams but if you are running a Hot Cam you will be fine. Other than the breaking valve they were great.