Hybrid GB system. 2 in the front. Ratios 1 and 2.25
Mathed this up with a narrow ratio 9spd road cassette (11 - 25) a long time ago. Same range as 24 /36 with 11-36 cog. But 18 speeds w/ zero overlap.
7 spd (w/ 10spd spacing) in the back w/ wider ratios and accepting some overlap.... a modern hammerschmidt with a wider ratio..... say 1:2. The larger gears would really help with drag reduction.......
April 6, 2021, 10:15 a.m. - Bruce Mackay
Hybrid GB system. 2 in the front. Ratios 1 and 2.25 Mathed this up with a narrow ratio 9spd road cassette (11 - 25) a long time ago. Same range as 24 /36 with 11-36 cog. But 18 speeds w/ zero overlap. 7 spd (w/ 10spd spacing) in the back w/ wider ratios and accepting some overlap.... a modern hammerschmidt with a wider ratio..... say 1:2. The larger gears would really help with drag reduction.......