Name: Deore BL-M4100 / BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black
Brand: Shimano
SKU: EMT4204JLFPMA100
Price: 99.99 CAD
Availability: InStock

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

$99.99 $194.99

Shipping calculated at checkout.

Loading shipping policy…

Returns & Exchanges Policy

Loading returns policy…

Hydraulic Hose Length

1000mm

1700mm

Position

Front

Rear

In stock, ready to ship
Backordered, shipping soon

UPC / SKU

UPC: 192790621401
SKU: EMT4204JLFPMA100

Checking availability…

Check availability at other stores

Multiple Financing Options

FREE SHIPPING on eligible orders over $150

Secure checkout

[{"id":47524491755707,"title":"1000mm \/ Front","option1":"1000mm","option2":"Front","option3":null,"sku":"EMT4204JLFPMA100","requires_shipping":true,"taxable":true,"featured_image":{"id":43339769446587,"product_id":8341528576187,"position":1,"created_at":"2026-09-09T11:50:43-04:00","updated_at":"2026-09-09T11:50:44-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/images-shared-Original-180766-01-1.jpg?v=1788969044","variant_ids":[47524491755707]},"available":true,"name":"Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black - 1000mm \/ Front","public_title":"1000mm \/ Front","options":["1000mm","Front"],"price":9999,"weight":272,"compare_at_price":19499,"inventory_management":"shopify","barcode":"192790621401","featured_media":{"alt":null,"id":32957275570363,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/images-shared-Original-180766-01-1.jpg?v=1788969044"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":48342835757243,"title":"1700mm \/ Rear","option1":"1700mm","option2":"Rear","option3":null,"sku":"EMT4204JRRXMA170","requires_shipping":true,"taxable":true,"featured_image":{"id":43339769479355,"product_id":8341528576187,"position":2,"created_at":"2026-09-09T11:50:43-04:00","updated_at":"2026-09-09T11:50:45-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/images-shared-Original-180766-02-1.jpg?v=1788969045","variant_ids":[48342835757243]},"available":true,"name":"Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black - 1700mm \/ Rear","public_title":"1700mm \/ Rear","options":["1700mm","Rear"],"price":10999,"weight":544,"compare_at_price":20499,"inventory_management":"shopify","barcode":"192790621425","featured_media":{"alt":null,"id":32957275603131,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/images-shared-Original-180766-02-1.jpg?v=1788969045"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":47524491755707,"title":"1000mm \/ Front","option1":"1000mm","option2":"Front","option3":null,"sku":"EMT4204JLFPMA100","requires_shipping":true,"taxable":true,"featured_image":{"id":43339769446587,"product_id":8341528576187,"position":1,"created_at":"2026-09-09T11:50:43-04:00","updated_at":"2026-09-09T11:50:44-04:00","alt":null,"width":2048,"height":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/images-shared-Original-180766-01-1.jpg?v=1788969044","variant_ids":[47524491755707]},"available":true,"name":"Deore BL-M4100 \/ BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black - 1000mm \/ Front","public_title":"1000mm \/ Front","options":["1000mm","Front"],"price":9999,"weight":272,"compare_at_price":19499,"inventory_management":"shopify","barcode":"192790621401","featured_media":{"alt":null,"id":32957275570363,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2048,"width":2048,"src":"\/\/thebikezone.com\/cdn\/shop\/files\/images-shared-Original-180766-01-1.jpg?v=1788969044"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Deore BL-M4100 / BR-MT420, MTB Hydraulic Disc Brake, Rear, Post mount, Disc: Not included, Black $194.99 $99.99

Hydraulic Hose Length: 1000mm

Position: Front

Checking pickup availability

BL-M4100

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

Bicycle shipping is a flat $100.

Standard ground shipping within Canada is free on eligible orders over $150. Bicycles are subject to the bicycle shipping rate.

Exceptions may apply to oversized or overweight items and deliveries to remote or rural locations. Additional shipping charges may apply.

Review the shipping charges shown at checkout before placing your order.

Read full Shipping & Delivery Policy

Request deadline: Within 7 days of receiving your bike or 14 days of receiving other items.
Condition: Brand-new, never used, and in original packaging. Bikes must be never ridden.
Final sale: Sale and special-order items cannot be returned or exchanged. A discount code on a regular-price item does not make it final sale.
Return deadline: Approved items must reach us within 7 days of approval.
Processing fee: 5% of the amount paid for returned items, excluding taxes and shipping, is deducted from your refund—even for returns brought to a store.
Shipping: You pay return shipping or may bring approved returns to either store. Original delivery charges are non-refundable.
Start a return: Submit our Online Orders Support form and wait for approval before returning anything.

Read full Returns & Exchanges Policy

For answers to frequently asked questions, visit our FAQ page.

Need help or have a question? Contact Us by email, phone or come see us in person - we’re always happy to help.

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

Product Specifications

missisauga store

barrie store

online orders support