I've got a bike with planetary hub Shimano Alfine 8-speed and this chain tensioner. It uses single speed chain. However master link on the chain I bought (similar to this pic) is too wide to fit in the chain tensioner. Is there another master link that will fit? Where do I buy it?

Edit: I made a mistake when I purchased chain with 1/8 inch width, my cog and everything else are made to work with 3/32 inch chains.

  • It depends on the chain you have. Do you know the brand and model or are there some marks on the chain that could help identifying it?
    – ojs
    Jun 25, 2018 at 17:42
  • My guess is that you have a 1/8" chain and you would have fewer issues with your chain tensioner with a 3/32" chain which it is likely designed for. The 3/32 chain is thinner and also available for single speed configuration. Though, that would mean you would need to have 3/32" compatible rear cog and front chainring.
    – Benzo
    Jun 29, 2018 at 14:01

1 Answer 1


Assuming you have a new KMC chain (pic of the connector is KMC).

KMC definitely makes 1/8" chain connectors of the 'Missing Link' style without the extra side plate clip that is presumably causing problems.

See here: http://kmcchain.us/connectortype/single-speed-ml/

and here: http://www.kmcchain.eu/connector-bmx_track_fixie

Can't tell you if those are readily available in Russia or where the best place to buy them is.

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