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Surly 110 bcd 36T

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jul:
Yes you're right Macspud, i have now a 16 t sprocket installed on my Nomad   :)

I know one thing, the first gear in 36x17 was so important for me to climb the mountain roads on long duration.

So effectively, i'm thinking to order a 35t and why not a 34 t if Rohloff manufactory accept this gear

macspud:
The 34 x 16 ratio (2.118 x) is just a little higher geared than 36 x 17 ratio (2.125 x) meaning  34 x 16 equal to 36.125 x 17. A 35 x 16 ratio (2.188 x) higher still equal to 37.19 x 17.

Your gear inches are initially were 15.2" - 80" on 37 x 17, after the cog change they were 16.2" - 85" on 36 x 16 and if you change to a 34T chainring would be 15.3" - 80.3" on 34 x 16, if you change to a 35T chainring would be 15.7" - 82.6".

martinf:
Triton cycles seems to have both 34T and 35T in stock:

https://www.tritoncycles.fr

But no 36T.

One downside to using a small chainring/small sprocket combination might be increased wear, both of the chain and chainring/sprocket.

This was very noticeable for me a few years back when using a 34T single chainring with a DualDrive system a few years ago. But that was with an alloy chainring, stainless steel should be better.

38T seems to wear well, I have had 38x22 alloy chainrings on utility bikes for many years before getting my Rohloff tourer with a Surly 38T.

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