Shimano XT RD-M8100 12 Speed Rear Derailleur - Long Cage - 12 Speed Heavy/Bulky They also have excellent breathability

They also have excellent breathability that allow you to stay dry and cool so you can climb in comfort and descend with confidence

Frame - Fits into a 41mm Non-Threaded Bottom Bracket Shell

Pros: Lower price point than the rest of the TLD range

Medium: 17 lumens

Shimano XT RD-M8100 12 Speed Rear Derailleur - Long Cage - 12 Speed Heavy/Bulky They also have excellent breathabilityThe M8100 12 speed rear derailleur offers fast and precise shifts on any trail. It features a low profile design to minimise it catching on stray branches or rocks. It also features Shimano's adjustable clutch system and added bump stops for increased chain security and quieter operation even on the bumpiest terrain. Designed for use on Shimano's 12 speed wide range cassette, it can handle a massive 10 51T range, and comes with a larger 13T pulley for