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Problem Solvers Braze-On Front Derailleur Clamp 28.6mm, Silver

These adapters clamp on to the seat tube so you can use your braze-on derailleur on a conventional frame. Available in three common seat tube sizes with 20mm of vertical adjustability.

Problem Solvers Cable Doubler 1:2

Problem Solvers makes two different Cable Doublers. This one allows you to control two brakes with just one lever. Why? Well, there are myriad applications: cyclocross, fixies, tandems, bike polo, tricycles, recumbents, cycles for those with special needs, those four-person bikes you see on beach boulevards, and so on. You could even link them both together for ultimate redundancy!

Problem Solvers Di2 Battery Mount

Mounting electronic shifting systems challenges the most prolific of bike mechanics. When small frames, recumbents, or adaptive cycles are involved, the standard battery mounts don't accommodate. This mount accepts the small Di2 or EPS battery mounts and comes with zip ties to attach that battery anywhere on the frame you need it.

Problem Solvers Double Barrel Brake Levers, Right

Designed for use with long-pull brakes, the Double Barrel levers allow two brakes to be actuated with one hand.

Problem Solvers Downtube Shift Cable Adjusters, Stainless Steel

These handy little adjusters mount to frames with downtube mounts for road shifting systems.

Problem Solvers Travel Agent w/adjustable barrel, Black

Problem Solvers Travel Agent w/adjustable barrel Cantilever, road dropbar, Shimano STI or Campagnolo Ergo levers Linear-pull.

The Travel Agent can perform a couple of different tasks; adjusting cable pull or serving as a roller to work around tight frame geometries. For cable pull changes, the Travel Agent makes a short cable pull lever work with a long cable pull caliper. This allows you to mix road, mountain and 'cross brakes and brake levers. Instead of buying new levers or brakes, just install a Travel Agent and you're good to go! To use Problem Solvers Travel Agent as a friction reducing roller simply route the cable on the outer edge of the wheel and it is smooth sailing for your brakes around tight bends.