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@benhayes
I'm quite new to fixed and am riding 48x15 which is starting to have an adverse impact on my knees. I'm undecided whether to move to 48x17 or 44x15 to ease the pressure. Can anyone advise which would be better and also where would be good to pick up either a 17tooth sprocket (plus lockring - I'll use the unoccupied flop side of my flip flop)or a 44tooth chainring this weekend. I don't want to spend too much on either but would like something half decent.
Cheers,
Ben