I have a Bosch/Rohloff bike that currently uses a 3/32 chain. Seems like that's the standard for Rohloff hubs. Problem is, I'd much rather use a 3/16 chain, i.e. a chain that's exactly twice as thick. Are there Rohloff sprockets designed for this? And if not, how difficult is it to manufacture a 3/16-compatible Rohloff sprocket?

Update: even though I'm still sticking with 3/32 chains, I'm now using the stupidly thick (8.8mm pin length) Connect 7R8 chains.

  • Guessing - but its the internal width of the chain plates that matter. A thicker chain won't make any difference provided the plates are the same distance apart. And length will be the same - all normal bicycle chain is 1/2" pitch (ie between pins)
    – Criggie
    Commented May 11, 2018 at 8:30
  • 2
    Why do you want to use such a wide chain? 1⁄8" is the wider standard for single speed and hub geared bikes. I thought anything wider was for use on freight bikes and heavy adult tricycles. Commented May 11, 2018 at 11:36
  • @ArgentiApparatus mainly because of the very heavy loads on the chain. I annihilate a chain in about 2-3000km of travel and changing chains is getting really annoying. I'd rather buy a heavy chain and do it less often. Commented May 11, 2018 at 11:37
  • 1
    Rohloff seems to use a proprietary thread for their sprockets. Manufacturing one is easy - if you have a CNC mill and the ability to precision harden steel☺. I would have thought that others would manufacture compatible sprockets. Commented May 11, 2018 at 12:10
  • 8
    seems pretty short to annihilate a chain if lubricated, unless you are riding in mud and sand. Perhaps a fully enclosed chain case is worth trying? Certainly the first thing I would get if I have a single speed chain setup. dutchbikebits.com/hesling-original-chaincase Had one on a motorbike once - it was beyond brilliant for chain life
    – Henry Crun
    Commented May 11, 2018 at 14:13

2 Answers 2


This maybe late but KMC now manufacture a 1/2" X 1/8" splined sprocket for Rohloff hubs https://www.kmcchain.eu/webshop-sprocket

With a matching 1/8" chainring you can now use a 1/8" chain no problem.

  • 2
    Wow, thanks for the find! Commented Nov 14, 2019 at 11:48

You could use a wider chain, even with narrower sprockets. As long as it's got a matching pitch (1/2") and it doesn't rub anywhere on the bike when fitted.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.