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Old 09-22-19, 01:28 PM
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Sturmey 8 various OLD's

Originally Posted by BromptonINrio View Post
sturmey archer 8 doesnt need to spread the frame, as its 116mm old. it will go in plug and play.
the ratios is the hard part, as brompton only aceppts 16 cog maximum due frama clearence.

so onlu aceptable gearing is 16 cog in back and 34 crankset on front.
The drum brake version requires about 138mm OLD whereas the small made for folding bikes version is 116mm but no drum brake. I use the Sturmey 20T cog and Shimano 39 T Crankset giving gear inch range of 32 to 102.
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