Shimano BR-MT420 + BL-MT401 Disc Brake J-Kit

The BR-MT420 + BL-MT401 Disc Brake by Shimano - More power, more safety

The Shimano disc brake consisting of the BR-MT420 4-piston caliper and the BL-MT401 brake lever offers you reliable braking power and thus more safety in gravity use. It delivers 20% more performance and is twice as wear-resistant as the BR-MT400 2-piston version, and is still 90% as strong as the pricier BR-MT520 model. The brake caliper is made of painted aluminium and has a straight line connection; the pistons are made of synthetic resin. The BL-MT401 2-finger brake lever has a tool-adjustable grip width that is also comfortable for small hands and pleases with its slim design. It is made of lightweight aluminium just like the main cylinder. Thanks to one-way bleeding technology and venting via funnel, proper maintenance is no problem. " J-Kit" means that the brake line is filled with oil but not yet connected to the brake lever. This simplifies installation, especially for indoor installation. Organic brake pads are included.

Specifications:

Application:

Enduro, Downhill

Type:

hydraulic, 4 pistons

Actuation:

mineral oil

Hose:

SM-BH90-SS

Hose Length (Front/Rear):

1000 mm/1700 mm

Technical Information - Caliper:

Caliper Mount:

post mount

Pads:

resin

Design:

2-piece

Calliper Material:

aluminium

Piston Material:

resin

Hose Connection:

straight

Technical Information - Lever:

Lever Length:

2-finger

Adjustment Options:

reach adjust (with tools)

Mount:

clamp (closed)

Design:

right (side-specific), left (side-specific)

Brake Lever Material:

aluminium

Brake Lever Housing Material:

aluminium

Hose Connection:

straight

Compatibility:

Mounting Position:

• front brake caliper: brake lever left
• rear brake caliper: brake lever right

Pads:

organic and sintered; with narrow pad shape; standard (no Ice-Tech)

Brake Rotor:

140 mm, 160 mm, 180 mm, 203 mm, 220 mm (recommended: SM-RT30, SM-RT54, SM-RT56, SM-RT64

Features:

Brake Caliper:

• 90% of the braking power of BR-MT520
• 20% more braking power compared to the BR-MT400 2-piston version
• 150% better wear resistance compared to the 2-piston version BR-MT400
• resin pistons
• painted
• steel bolts (5 mm)

Brake Lever:

• slim design adopted from MTB racing components
• easy to reach grip for small hands (minimum reach 75 mm)
• easy, fast and clean installation
• funnel venting with M5 funnel
• anodised lever, painted body
• steel clamp bolt

Technology:

One-Way Bleeding
One Way Bleeding is a technique used on Shimano calipers that facilitates brake bleeding. The hose routing has been optimised so that no air bubbles remain in the brake calliper. In combination with the funnel, the brake can be bled cleanly and easily.

J-Kit
J-Kit is a simple line connection system for hydraulic brakes from Shimano, so that you can install your brakes quickly and easily. The brake hose does not come connected to the brake to facilitate routing of the hose in the frame. The brake hose is already filled with oil in the J-Kit and sealed with a thin membrane. There is a small pin in the J-Kit brake lever that pierces this diaphragm during assembly to allow oil to flow.

Manufacturer Numbers:

Front:

E-MT401EJHFPRA100

Rear:

E-MT401EJGRXRA170

Contents:

• 1 x Shimano BR-MT420 + BL-MT401 disc brake, front or rear
• 1 x Shimano SM-BH90-SS brake hose, 1000 mm (front) or 1700 mm (rear)
• 1 x pair Shimano brake pads
• 1 x insert
• 1 x olive
• 2 x calliper bolts
• 1 x snap ring
• ready for installation, filled, bleeding is recommended after installation

Order Together:

• Disc Brake Adapter
• TL-BH61 tool for insert installation

Optional accessories:

• D02S Metal Pads