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Shimano BL-MT402 + BR-MT420 Hydraulic Disc Brake - J-Kit - Set RW

Shimano BL-MT402 + BR-MT420 Hydraulic Disc Brake - J-Kit - Set RW

Shimano disc brake at Alivio level consisting of BL-MT402-3A brake lever and BR-MT420 caliper. The result of the combination is a solid brake performance in any condition. Trouble-free maintenance is provided by the proven One Way Bleeding concept and the Easy Hose Joint System which simplifies brake hose exchanges.


J-Kit (Easy Hose Joint System)

At brake systems with J-Kit hose joint the brake lever features an integrated olive what makes an easy brake hose installation and removal possible.


Shimano BL-MT402-3A brake lever

The Shimano BL-MT402 brake lever is suitable for a wide range of bikes with flat handlebars. With its ergonomic 3-finger design, it is not only comfortable and suitable for long Trekking tours, it also allows different grip positions and can be easily combined with a corresponding shift lever. The slim master cylinder not only ensures a tidy cockpit, in terms of deceleration it also offers optimized braking performance and well-tuned modulation.


Shimano BR-MT420 disc brake caliper

The hydraulic Shimano BR-MT420 disc brake caliper features a 4-piston construction but is nevertheless characterized by a slim design. The 4 resin pistons offer 20 % more braking power than the 2-piston version and guarantee reliable deceleration and control on Downhill tracks. Even the wear resistance could be improved by 150 % compared to the BR-MT400 caliper. Postmount compatible.


Recommended discs:

140-203 mm (not included)
SM-RT30, SM-RT54, SM-RT56 (each only with Resin brake pads)
SM-RT64 (compatible to Resin and Metal brake pads)



lever: aluminium (anodized)
master cylinder, caliper: aluminium (painted)
pistons: resin
hardware: steel


Content of delivery:

hydraulic disc brake set:

  • BL-MT402-3A brake lever
  • BR-MT420 caliper incl. D03S Resin brake pads
  • SM-BH90-SS brake hose (filled)

Fact Sheet of Shimano BL-MT402 + BR-MT420 Hydraulic Disc Brake - J-Kit - Set RW

Product Name: Shimano BL-MT402 + BR-MT420 Hydraulic Disc Brake - J-Kit - Set RW
Manufacturer: Shimano Parts
Item Code: SHI501741
activity: Cycling
material: Aluminium
usage bikesport: MTB
disc brake mount: Postmount
brake actuation: Hydraulic
brake lever version: Flat bar / Riser
brake lever style: 3-Finger
RW brake hose length: 1700mm
brake fluid: Mineral Oil
Disc brake - version: # Rear Wheel, Set caliper & lever
Model year: 2023
Color: Black
manufacturer item code: EMT4023AEJRRXRA170
Manufacturer page: http://www.shimano-europe.com/