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This kit reroutes the power side chain onlyunder the crossarm so the chain doesn't scrape on the top of the crossarm. This happens most often if you a tall rider, or have your crank boom extended further than usual.

This kit provides a new Power Side Idler, a 2" Clamp On Idler Mount, Stainless Idler Bolt, Clamp on Chainkeeper, spacers, and zipties to redo the return side chain tube. The Clamp on Mount allows the idler to float and track with front deraileur shifts. The zipties and included instructions allow you to float a short section of return side chain tube to help you get the return chain past the crossarm as smoothly as possible.

Notes: This upgrade kit is not for everyone. If your boom is not extended very far, or you don't have a problem with chain scraping on the top of the crossarm, we recommend you stick with what you've got. This kit is for those situations where running the power side chain over the top is a problem. Usually it's not. Moving the power side chain under the crossarm can lead to other problems on trikes that don't need it, like rubbing on the bottom of the deraileur cage in low gear. If the chain is low enough to be a problem on top, then the deraileur clearance is fine when you move it to the bottom. Move it when you don't need to, though, and it won't work.

We also offer a version of this kit that does away with the last remaining bit of chain tube on the return side. This version is restricted for use with trikes where the return chain coming off the bottom of the big chainring needs to be deflected downwards to get under the crossarm. If this is the case with your trike, and you'd like a power/return idler pair below and in front of the crossarm, please contact us. Since this is an uncommon situation, we want to make sure this is what is really needed before sending off parts to you.

Questions? Call 847-692-4240 or email us.