BR-MT420 4-Piston Disc Brake Set
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✓ Free freight P&A $200+
🚚 $20 freight under $200
🏪 Free Click & Collect
Free shipping on orders $200 + · $20 flat under $200.
Shimano BR-MT420 4-Piston Hydraulic Disc Brake Set
The Shimano BR-MT420 4-piston hydraulic disc brake set is a powerful and reliable upgrade for mountain bikes, e-bikes, trail bikes and riders wanting stronger braking control without moving into high-end race-level pricing.
Matched with the Shimano BL-MT401 brake lever, this system delivers consistent stopping power, smooth lever feel and dependable performance across everyday riding, technical trails and steeper descents around Mackay.
Key Features
- 4-piston Shimano BR-MT420 caliper for strong and consistent braking power
- Paired with Shimano BL-MT401 2-finger hydraulic brake lever
- Hydraulic mineral oil system for smooth braking feel and easy maintenance
- Post mount caliper design
- Compatible with Shimano D03S resin and D02S metal brake pads
- Split pin pad retention
- Great option for mountain bikes, e-MTBs, trail bikes and heavier-duty commuter bikes
- Rotors not included
Available Options
- Front: EMT401EJGFRA100 – 1000mm hose
- Rear: EMT401EJHRXRA170 – 1700mm hose
Technical Details
- Model: Shimano BR-MT420 / BL-MT401
- Brake Type: Hydraulic disc brake
- Caliper: 4-piston
- Lever: Shimano BL-MT401
- Hose: Shimano SM-BH90-SS
- Brake Fluid: Shimano mineral oil
- Mount: Post mount
- Pad Compatibility: D03S resin / D02S metal
- Rotors: Not included
- Colour: Black
Why Buy From Mackay Cycles?
Mackay Cycles can help with brake upgrades, pad and rotor compatibility, installation, hose shortening and hydraulic brake bleeding. Whether you are upgrading a trail bike, replacing worn brakes or improving stopping power on an e-bike, our workshop can make sure the system is fitted and set up correctly.
Summary
- Orders under $200: $20 flat freight
- Parts, Clothing & Accessories $200 and over: Free freight
- Bicycles, East Coast Australia (QLD, NSW, VIC, ACT, TAS & SA): $200 flat freight
- Frame-sets, East Coast Australia: $150 flat freight
- Wahoo KICKR BIKE smart-bikes, East Coast Australia: $400 flat freight
- Zwift Ride smart-bike, East Coast Australia: $200 flat freight
- Warehouse-supplied items: Allow 5–7 working days to arrive at our Mackay store, then dispatch within 24 hours
- In-store Click & Collect: Free, usually ready within 4 business hours
- WA & NT freight: Available by quote — please contact us
- Dispatch: Within 24 hours during business days, excluding weekends and public holidays
- Insurance: Recommended for items over $400 — available on request
Full Shipping Policy
1. General Shipping Information
All online orders are processed and shipped from our Mackay store during normal operating hours (8:30am–5:30pm, Tuesday to Friday). Our goal is to dispatch your order within 24 hours of placement, excluding weekends and public holidays.
Parts, Clothing and Accessories are shipped via Australia Post or other parcel courier. Bicycles, Frame-sets and indoor smart-bike trainers are shipped via specialist bike courier services to ensure they arrive in suitable condition.
2. Warehouse-Supplied Items
Some items on our website are supplied directly from brand warehouses interstate. Where this applies, the product page shows a note such as "Available to Order from [Brand] Warehouse — ships to Mackay Cycles, then ready for Click & Collect or local delivery in approx. 5–7 working days."
These items route through our Mackay store before dispatch, so we can check, pack and freight them properly. Please allow the stated working days for the item to arrive with us before it's dispatched to you.
A small number of items ship direct from the supplier to your address — where that applies, the product page will say so.
3. East Coast Australia Bike Freight
Our $200 flat-rate Bicycle freight, $150 Frame-set freight, and indoor smart-bike freight ($200 Zwift Ride / $400 Wahoo KICKR BIKE), are available to addresses in Queensland, New South Wales, Victoria, the Australian Capital Territory, Tasmania and South Australia. Freight to Western Australia and the Northern Territory is available by quote — please contact us with the item and your address and we will provide a custom quote.
4. Click & Collect at Mackay Cycles
Free in-store pickup is available from 7/8–14 Centurion Drive, Paget QLD 4740. Most online orders are ready within 4 business hours; we'll send a notification when your order is ready to collect. Items not on-floor (typically supplied from interstate warehouses) are not currently available for immediate Click & Collect — they'll be ready for collection once they arrive with us (see Section 2). Click & Collect is available as a separate option at checkout.
5. Freight Insurance
Freight insurance is recommended for shipments valued over $400 and is available on request. Without insurance, claims for damage in transit may not be covered. Contact us before placing your order if you would like insurance added.
6. Custom Orders & Special Requests
We carry over 5,000 products in store and have access to all the major cycling brands. Only a fraction of our range is live on the website. Contact us for special orders, custom builds, quotes and any questions.
7. Contact
- Email: kyle@mackaycycles.com.au
- Phone: (07) 4999 9474
- Mobile / SMS: 0432 000 162
