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Sheldon's gear inch calculator ignores crank length, you need to be using his gain ratio calculation to include that.
Thanks, did not know that.
I'm not suggesting that, I'm just pointing out that you're making 2" difference into a bigger deal than it is, at least in terms of a gear ratio for general winter riding.
Overthinking is very much my style. I'll just try something out with cheap chainrings, and If I don't like it I'll just change it back.
Thanks everyone.
Murphy's_Law-
I'll just try something out with cheap chainrings, and If I don't like it I'll just change it back.
From where you're starting, I'd have gone with 46/19* for this winter, and if you still think 2" is a big difference you can get a 48T chainring in the spring.
*What I've actually got on my hack bike is 46/18 (about 67.5" with my tyres), but I have two brakes :-) & 170mm cranks and live in the countryside, so I do less stop-start than most. I'd probably drop down to 63" for town.
gbj_tester
I'm not suggesting that, I'm just pointing out that you're making 2" difference into a bigger deal than it is, at least in terms of a gear ratio for general winter riding.
Sheldon's gear inch calculator ignores crank length, you need to be using his gain ratio calculation to include that.