I likes the 15/43 the best for street riding as I am 200 lb. These things are easy to over gear. And from my experience racing the mile they will not push the 15/41 past 11,500 rpm. And the max power is at 12000-12500. So the bike slows down in sixth gear when going full throttle for a mile.
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Top speed 123.369mph. Ohio mile
Worlds fastest 250 ninja
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