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Old February 7th, 2018, 12:49 PM   #6
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Gearing shouldn't change MPG because air-resistance is still same at same speed. Thus power-required to move bike at that speed will still be same. With taller-gearing and lower-RPMs, you have to open throttle a little more to generate same power for same speed.

True that you're closer to max-VE of engine at lower-RPMs and have lower pumping-losses with larger throttle-opening. But difference isn't that significant.

I'm using a 16x45t on my newgen and that lowered cruising RPM by about 1000 and makes for a more relaxed ride.
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