Opinion on the Thumper Racing YZF 280 Kit

theMotoMan

Member
Jan 12, 2001
60
0
Rich,

I've heard you recommend in the past to stay clear of the steel sleeve big bore kits for the YZ250F. I hear that ThumperRacing now has a 280 kit that has a Nikasil plated bore. Any opinion on this mod? Can the crank take this extra abuse? I'm also considering the Vortex ignition to go along with my Dr. D. pipe.

I'm looking for extra beans to help me against the big-bores in the Vet class.
 

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