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Scilly.Suffolk
ColnagoDaft
Muppetteer
So, after a couple of months the bike now has a new crankset fitted. Which, has solved one problem (the previously splitting crank) and created another.
My GF isn't the greatest gear shifter alive, and tends to ride in whichever ring she happens to already be in, only changing when she can't shift on the cassette anymore (in either direction). Cross chaining isn't in her vocabulary. And by fitting the new crank (Ultra Torque), she now gets chain rub in the 13/39 combination on the rear of the 53 ring.
Whilst there's a sensible and straight forward solution to this problem (shift to the 53 before the rubbing), this isn't so straight forward as it will take her a while to get into the habit.
Is there a solution on the bike side to the problem? Should or can the drive side cups have a spacer, or would that affect the hirth joint? Or is there something that can be done on the cassette side?