Technical & Reference Section > Tech and Restoration
chain ring to freewheel sizing ?
Spen69:
Yep, you need a flip-flop hub.
I run an Odyssey 13T freewheel on my Badlander as it's the smallest you can get for a 30mm metric side on a flip-flop which let's me run a 36T chainring on a 110mm BCD powerdisc. Any smaller will clip the chain and you will need a small 110mm BCD spider to avoid this which wasn't an option on a park bike.
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