X12 gravel bike Challenge produces the only seamless

Challenge produces the only seamless 'one-piece' latex inner tubes on the market providing a smooth

whenever you like while minimizing the risk of a dropped chain

Larger X-SYNC pulleys for increased durability and efficiency

Charger™ RC damper featuring Low Speed Compression adjust

BASEPLATE & WAVE WASHER) SID RLC A1(2017-2019)/RL B1-B2(2017-2019)/B4(2020+)

X12 gravel bike Challenge produces the only seamlessCompatible with 12 Speed Double X bridge shape for super fast and smooth shifting Inner and Outer plate chamfering 126 links Attributes Chain Weight 272g Chain Width 5. 2mm e Bike approved No Link Type Missing Link Links 126 Primary Color Silver Speed 12