Stans Dart Refill Biogen Chain-SHIMANO Ultegra 12spd

Chain-SHIMANO Ultegra 12spd

• Stable shoulder blocks for precise steering

Designed to cope with the higher torque loads applied to an electric bike drivetrain

With ANT+ and Bluetooth connectivity

and it’s also lighter than the previous generation

Stans Dart Refill Biogen Chain-SHIMANO Ultegra 12spdOur Dual Action Repair for Tubeless (DART) system offers a better way to fix damaged tubeless tires. Specially treated DARTs dont just plug large slices and punctures in your tires, they react with Stans sealant to form a permanent airtight bond. This Refill kit contains five DARTs and a carrier that makes reloading your DART Tool fast and easy, all stored in a compact, sealed container.