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7 votes
3 answers
3k views

How can I lower the gear ratio on my son's bike?

I got a SH Commencal 24" MTB for my son. He loves it - except on climbing steep slopes where he runs out of steam. It comes with a 7-speed 14-28T freewheel (Shimano MF TZ21) + Acera derailleur, ...
Cristian Diaconescu's user avatar