Quote:

Seems like for all the work it's gonna take $250 more for the 904cc kit isn't all that much extra. Of course you don't get new cams, but...



I used to put 10.5:1 pistons in my old bikes the gains were perceptible to the rider, never dynoed one. With the 904 you have the cost of machine work too. I wasn't thinking of cams either, meaning I really don't want any just the higher compression and better piston. This is for the 865 anyway not the 790 so not sure what if any gain you would get with the cam. I already have really good numbers on the dyno so the BB kit only hold interest to me when it comes time to rebuild. I like to ride and am not racing.

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