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Brake setVerified spec

Shimano Zee M640 BL-M640-B / BR-M640

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Overview

Brand
Shimano
Series
Zee M640
Model
BL-M640-B / BR-M640
Type
Brake set
Years
2012 to 2021

Compatibility

Mount
post_mount

Specifications

Oil
Shimano mineral
Pads
D01S resin / D02S metal (H01A optional)
Fluid
mineral
Pistons
4
Brake type
hydraulic_disc
Servo wave
true
Lever blade
2-finger aluminum blade
Lever model
BL-M640-B
Reach adjust
tool
Caliper model
BR-M640
Lever weight g
116.7
Rotor sizes mm
140, 160, 180, 203
Piston material
ceramic
Caliper weight g
314
Recommended rotor
SM-RT68, SM-RT66
Free stroke adjust
false

Gravity 4-piston set below Saint. Lever and caliper weights are single-item figures from the 2017-2018 handbook; rotor sizes from the 2020-2021 handbook.

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