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@Polygon
Thinking about setting up a dinglespeed-fixed drivetrain on the commuter. I'm currently running 50/18, have just purchased a 48T chainring though as it's a bit high for pulling away from lights all the time and I never spin out. works out about 70"
The smaller gear on the dinglespeed would be used for lunchtime hill climbs up Belmont, (east Bristol) I've tried it on 48/18 before and it was no fun at all. It averages about 6.5%, and peaks at about 10%. What should I be aiming for on the lower ratio? About 60"? Or is this just a totally dumb idea and I should HTFU and get up there on my regular gear?