I'd say it's a pretty even match until you get into the really fast laptimes, where an NSR with properly set up suspension definitely has the edge. I was racing against a derestricted CBR400RR at the weekend, which has been dynoed at 65 RWHP, the rider was much slower than me but in the straights it seemed fairly close. Somebody told me that the CBR400RR weighs the same as an R1!!!!
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MC28 SE -sold-
MC21 with RS250 engine -for sale-
MC21 race bike -soon for sale-