Name: Deore BL-M4100 / BR-MT420
Brand: Shimano
SKU: 180766-02
Price: 210.99 CAD
Availability: InStock

Title

Shimano, Deore BL-M4100 / BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black

Prix

Shipping on complete bicycles billed separately due to rapidly changing shipping rates

Secure payments

Frais d'expédition calculés lors du passage à la caisse.

[{"id":52753710678240,"title":"Shimano, Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black","option1":"Shimano, Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black","option2":null,"option3":null,"sku":"180766-02","requires_shipping":true,"taxable":true,"featured_image":{"id":54035766182112,"product_id":9735814775008,"position":1,"created_at":"2026-05-25T13:25:08-04:00","updated_at":"2026-05-25T13:25:10-04:00","alt":"Shimano, Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black","width":900,"height":900,"src":"\/\/joemammacycles.com\/cdn\/shop\/files\/180766-02_1.jpg?v=1779729910","variant_ids":[52753710678240]},"available":true,"name":"Deore BL-M4100 \/ BR-MT420 - Shimano, Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black","public_title":"Shimano, Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black","options":["Shimano, Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black"],"price":21099,"weight":544,"compare_at_price":null,"inventory_quantity":5,"inventory_management":"shopify","inventory_policy":"deny","barcode":"192790621425","featured_media":{"alt":"Shimano, Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black","id":43316887322848,"position":1,"preview_image":{"aspect_ratio":1.0,"height":900,"width":900,"src":"\/\/joemammacycles.com\/cdn\/shop\/files\/180766-02_1.jpg?v=1779729910"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

Intuitive and powerful braking
Quicker brake engagement with shorter free stroke
Rider tunable and action-optimized cockpit
High-performance brake control
Additional contact point for a stiffer brake lever
10 deg. rotation angle setting range for I-SPEC EV shifting lever

BR-MT420
90% braking power vs. BR-MT520
20% increase braking power vs. current 2-piston BR-MT400
150% better wear-resistance vs. current 2-piston BR-MT400
Brake pad: resin, metal
Pre-assembled and bled brake lever and caliper, with SM-BH59-SS hose & mineral oil
Without rotor and adapter
One-way bleeding system

Attributes

Fluid	Mineral oil
Brake Material	Aluminum
Caliper mount	Post mount
Disc Diameter	Not included
Hydraulic Hose Length	1700mm
Lever Blade Material	Aluminum
Pistons	4
Position	Rear
Primary Color	Black

Every Day Free Shipping: Joe Mamma offers free shipping on all Canadian orders over $200 excluding complete bicycles and trainers. Customers are also welcome to pick up their orders in store at no charge, you can opt to do so at checkout (please await your order completion notice before coming to pick up your order).

Shipping Policy: Orders will be shipped as soon as possible, customers will be notified if any delay should occur. If one part of your order is unavailable at time of order, your order may be fulfilled with multiple packages. Shipping charges are non-refundable. International clients please note that customs or brokerage fees are the sole responsibility of the purchaser.

Joe Mamma Cycles ships to both Canada & the USA! We use Canada Post, UPS & Fedex to get you the best price & use recycled packaging to reduce our environmental impact.

**For in-store pick-up, please indicate which location is most convienent for you. Product will be transferred for your convenience.