The Rohloff Upper Chain Guide is an awesome addition to any bike with a single ring up front. Set up to be similar in function to a front derailleur but without the swing, this baby doesn't let your chain anywhere near your frame if it pops off. Also, with a whole mess of spacers included, you can set up your chain alignment precisely so your chain won''t rub and your pedaling will continue to be smoother than the creamiest butter.
Mounts in place of a front derailleur to the seat tube
Included spacers allow for precise chainline alignment
Fits 28.6mm, 32.0mm, and 35.0mm seat tubes (shims for 28.6mm and 32.0mm included)
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