Polymount Calipers -Tough and durable ISO Mountain

-Tough and durable ISO Mountain approved

The lazered micro profile structure expands over the tire’s shoulder and provides outstanding cornering

making this the most repairable derailleur we’ve ever made

durable cold-forged aluminum in Shimano's wide-pivot design with their light-action spring

Polymount Calipers -Tough and durable ISO MountainTriRig 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