what gearing for 210 mph top end

[gm1300]

i am planning on building an 05 busa with a hahn stage one turbo with around 240 hp to the rear wheel

i know i dont want to stay with the stock gearing that will only let the bike go high 190's

i am guessing that gearing good for around 210 mph is a good way to go

what should i do ?

can i just change the rear sprocket to get what i am looking for ?

thanks in advance

gary



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[MET]

If your sprockets are fresh you can change the rear to a 38 which will give you a final ratio of 2.235. If you change both 18/40 (ratio 2.222) is good up to about 217mph. If you have any wear on the sprockets are change change them all.