Originally Posted by
Andrew R Stewart
My math mistake, miss hit the calculator buttons. Eric F is right on the math of ratios. I won't say inches of development is stupid. Any system that serves as a basis for understanding and can be used to describe to others and be discussed is not wrong. Andy
Inches of development (travel along the ground for each pedal revolution) is meaningful and easily understood. However, “gear inches” is the equivalent diameter (not circumference) of the front wheel on a penny-farthing bike. It’s archaic and meaningless, except for this one specific context. I’m sticking with my previous characterization - it’s stupid.
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RIP 01/08/25...2022 Trek Supercaliber, 2018 Storck Fascenario.3 Platinum, 2018 Trek Procaliber SL Singlespeed, 2017 Bear BR1, 2003 Time VX Special Pro, 2001 Colnago VIP, 1999 Trek 9900 singlespeed, 1977 Nishiki ONP