DIY Chain Tensioner

Dropping a chain stinks.  I hate that feeling when I go from having tension while pedaling to my legs spinning wildly.  Reader Christopher was having drop problems and came up with his own chain tensioner. 

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My single speed frankenbike would not stop dropping the chain with the old derailleur I was using as a tensioner so I took it upon myself to make one out of a rack support and a big ol' pulley wheel (14t).

It works a lot better than I thought it would, I figured it'd just collapse on the first rough mtn. ride, but its held up fine so far.

Comments

[Torben Putkonen]

I bet you could get an old derailleur for free from some dead bike and use it instead. Those things were made just for this purpose.

[Ron Ablang]

I think this guy prefers his single speed, which is why this is a genius hack.

[___Danno]

Nice chainstay protector!