Brake setVerified spec

Shimano Shimano non-series BL-MT401 / BR-MT420

Own a Shimano Shimano non-series BL-MT401 / BR-MT420?

Track its value in your garage, or list it for sale locally in a few taps.

Overview

Oil: Shimano mineral
Pads: D03S-RX resin / D02S-MX metal
Fluid: mineral
Pistons: 4
Brake type: hydraulic_disc
Servo wave: false
Lever blade: 2-finger aluminum blade
Lever model: BL-MT401
Reach adjust: tool
Caliper model: BR-MT420
Shifter mount: none (separate shifter clamp)
Lever variants: BL-M4100, BL-MT402-3A (3-finger), BL-MT420, BL-MT420-3A; Bosch ABS J-kits BL-M4100-ABS, BL-MT402-ABS, BL-MT420-3A-ABS
Rotor sizes mm: 140, 160, 180, 200, 203, 220
Piston material: resin
Recommended rotor: SM-RT64 (metal or resin pads); SM-RT30, SM-RT54, SM-RT56 (resin only)
Free stroke adjust: false

Resin-piston 4-piston set; the ABS lever versions are special J-kits for Bosch ABS e-bikes. Rotor sizes per the 2026-2027 handbook.

None listed right now. Save a search in the app and get told when one appears. Parts are local pickup at launch.