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Old 29-04-13, 23:25
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Black Dog Black Dog is offline
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As SingleMinded has said, the standard gearing is fairly tall anyway, and many people go the other way and lower the gearing (which makes the speedo even further out, of course, but you can't have everything). You ought to consider that if you raise the gearing the bike may not cruise as well at the speeds you mention, as the engine will be further down the torque curve at the lower revs.

It's a quick and easily reversed mod, so there's no harm in trying, but my feeling is that Yamaha have got the gearing about as high as it will reasonably go.
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