probably somewhere between ~170–195 WHP for a mostly-stock R1M, ~190–205 WHP if it’s got an ECU flash + free-flow exhaust/tune, and 210+ WHP only for heavily modified engines/race builds.
Why that range?
-
Independent dyno aggregations for the 2015–2019 R1 put rear-wheel numbers around ~180 WHP. MotoStatz
-
Factory/aftermarket race ECUs and aggressive tunes commonly push R1s into the ~190 WHP neighborhood (one tuned result reported ~193 WHP). Facebook+1
-
You’ll also see individual dyno videos/posts claiming ~200 WHP or higher — but dyno type, correction factors, and how the bike is set up (fuel, ram air, gearing, heat soak) can swing numbers a lot. YouTube+1
-
Rule of thumb: crank hp claims near 200 translate to roughly 10% (or so) lower at the wheel on many dynos — but that loss varies by drivetrain and dyno. Reddit