Polymount Calipers making this the most repairable

making this the most repairable derailleur we’ve ever made

After more than 2 years of development

but they also provide additional support at the back

-Tough and durable ISO Mountain approved

especially for growing swimmers

Polymount Calipers making this the most repairableTriRig Polymount: The Most Versatile 3 in 1 Cycling Accessory Mount The Polymount is a 3 in 1 solution offering versatility for cyclists who demand the best in bike accessory mounting. Renowned by athletes as the most adaptable computer mount on the market, the Polymount is designed to fit both between the arms (BTA) and on extension setups, making it a perfect addition to any aero bar configuration. The Polymounts articulating arm gives you complete