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Topic starter
Debating whether to go 1x9 or 1x10 from my current double ring set up with a road block at the rear. Currently have a 22t granny with 11 - 25t cassette, would probably go to 32t front and 11 - 36t rear if I changed, how do I calculate whether the highest/lowest gears are comparable?
Posted : 31/12/2011 10:17 am
Teeth on front/teeth on back X circumference of wheel.
Posted : 31/12/2011 10:21 am
Topic starter
so
22/25 = 0.88
or
32/36 = 0.88
Ignoring the wheel size. Therefore no change in gears?
Posted : 31/12/2011 10:34 am
Sounds right. If you're not changing wheel/tyre size, you can ignore wheel size completely and just use the ratio.
Posted : 31/12/2011 10:41 am