OneUp Components 4 Bolt Chainring - 104 BCD - Round - Black - 12 Speed Shimano - 30T YGroup_7033448038445 Cons: No chest or arm

Cons: No chest or arm protection

rubber and alloy parts

The 100-3D Micro-Adjustable clamp sits approximately 13 inches from the wall

The Terreno bridges the gap between file treads

This system sets the spacing via an adjustable floating sleeve on the axle

OneUp Components 4 Bolt Chainring - 104 BCD - Round - Black - 12 Speed Shimano - 30T YGroup_7033448038445 Cons: No chest or armUpgrade or complete your drivetrain with a OneUp Components 4 Bolt Chainring. These chainrings are easy to fit and will suit a range of 4 bolt cranks in a handful of BCD's. Choose from standard round chainrings or try out an Oval ring for better traction. Made from a high grade 7075 T6 aluminium these chainrings use a Narrow Wide tooth profile that eliminates chain drop with a perfect mesh between the chain and ring. Compatible with 9, 10, 11 and 12