Rohloff Downhill Chain Tensioner 8245


The Rohloff DH chain tensioner is specially designed for downhill use. In contrast to the regular Rohloff chain tensioner, it has a shorter swing arm that is restricted from moving. This feature ensures that the upper jockey wheel runs very close to the sprocket. This forced guide guarantees a positive run of the chain onto the sprocket even under extreme riding conditions. To remove the wheel, the chain tensioner mounting bolt must be loosened. The Rohloff DH chain tensioner has a tension capacity of 10 chain links. It is mounted to the gear hanger of the frame. The adjustment to the correct chain line can be achieved by shims. On dropouts thinner than 7mm, the use of the 13 tooth sprocket (chainline 58mm) will require the use of the longer mounting bolt. This is available separately.

Rohloff chain tensioners are only suitable for 1/2″ x 3/32″ and 1/2″ x 11/128″ chains.

This chain tensioner will be required for use with: Rohloff SPEEDHUBs mounted in frames equipped with Shimano’s new direct-mount derailleur hanger; such applications will require the hanger bed-stop to (see arrow) to be re-positioned to the second locating hole.

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This product is: A regular item

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