[loridin64]

im changing the 42T on my RC to a 41T that i have laying around, the 42 is all hooked. I know this will 'lower' my low end torque

also, within the life of the 41T, im going to change my tire from a 190/50 to a 180/55 (also have that laying around)

My question is, how is changing the tire going to effect my gear ratio?

[DBConz]

for the sprockets, use the online calibrator on speedohealer.com
for the tires

[mycirus]

Put a 15 on the front, 41 on the back and enjoy. Who cares what the ratio is.

Bruce

[ZX-12R]

With a 6" rim, the 180/55 will still be ever so slightly larger in diameter than a 190/50. The circumference of the two should be within 1% of each other.

Variation in construction between tire brands could make the disparity larger or even reverse it.

[loridin64]

i guess i wasnt asking what the actual gear ratios would be. i was just wondering if going from the 190/50 to the 180/55 would make a drastic change in the final drive ratio.

oh, the 190 i have is a Dunslop Qualifier and the 180 is a Pilot Power

[Crash Dummy Denno]

IMO - you're worrying about something very miniscule - enjoy the quicker tip in with the 55 and smile!