Best front chainring size for max speed on a 20 inch BBSHD ebike

djneils98

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Mar 27, 2022
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So I have a Tern Verge D9 that I've put a BBSHD on.
Currently I have a 52T chainring on the front.
The smallest rear cog is 11T but currently the bike gets max speed in a higher rear cog.
Would I get any increase in max speed by going for a smaller front chain ring (say 44T or 46T) and utilising the 11T rear or will it not really matter?
 

BBassett

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Mar 21, 2022
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If speed is all you want go with the largest front gear you can find. You will sacrifice climbing ability and will own an ebike that can't ride on Class-1/2 biking infrastructure though. s**t can the gearing and buy a Rohloff Speedhub.
 
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