NEW Shimano Deore BL-M4100/BR-MT420 Disc Brake, Rear, Post-Mount, 4-piston donotlist Features an oversized piston that

Features an oversized piston that houses a reversible Presta/Schrader hose

Affordable and reliable derailleur is great for repairs and upgrades

Mount | Rotor Size: Front Flat | 160 Rotor

- New hammer type TwinHead™ DX with longer lever for easier use

NEW Shimano Deore BL-M4100/BR-MT420 Disc Brake, Rear, Post-Mount, 4-piston donotlist Features an oversized piston thatShimano BL M4100 BR MT420 brake set features excellent ergonomics and a 4 piston caliper. Making for a high performing, cost effective brake system. The Shimano Deore M4100 delivers high powered and reliable braking Brakes are pre bled Includes metal brake pads Comes with 4 piston caliper Hydraulic Fluid Type: Mineral Oil Brake Mount: Post Color: Black Front Rear Pair: Rear Length: 1700mm Model: BL M4100 BR MT420 Mount: Post Pad Material: Metal