road the XX today. the TB bore ,is worth it ,and BTW so is moving the TB back an 1 inch.
I have no air box which BTW is one of the reasons it makes it possible to move the TB back .
the bracket on the fuse box had to go , no room for it .
751 ,barker pipe,290 Web cam,+3 stroker,TB bored to 46.8 and moved back from head 1 inch,+3 big bore , +1 intake valves, Hard Welded Rockers,KW springs, ported, clutch mod , air box removed ,Cat oil mod, dynojet commander V w/auto tune , lowered rear end , TRX450R front shocks ,