Muc-Off Crank Preload Ring - Orange MFPN=MN0155 Shadow low-profile design protects rear

Shadow low-profile design protects rear derailleur from obstacles in a wide variety of riding scenes

Tool-free reach adjust for quick personalization

Use Di2 system checker to update component firmware from http://e-tubeproject

- Made in the USA with domestic and imported materials

}Pirelli Cinturato Gravel RCX TLR Tire - 700 x 40 Tubeless Folding Tan

Muc-Off Crank Preload Ring - Orange MFPN=MN0155 Shadow low-profile design protects rearThe Muc Off Crank Preload Ring is a super durable precision CNC machined 7075 piece of hardware. It allows you to precisely adjust the preload tension on the bottom bracket bearings. What does this do? It helps to remove the side to side play and slack in thru spindle bottom brackets to help maximize the life of your bottom bracket bearing as well as giving you a creak free ride. It fits onto the left crank arm of any mountain gravel or road bikes