Shimano MT501/MT520 Disc Brake - Rear - Left

Name: Shimano MT501/MT520 Disc Brake - Rear - Left
Brand: Shimano
SKU: s3csxvyzxe
Availability: InStock

The Shimano BL-MT501 Bled Brake Lever and BR-MT520 4-Piston Post Mount Caliper offers reliable hyd...

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Shimano Non-Series BL-MT501 bled brake lever and BR-MT520 Right Disc Brake

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Leisure Lakes BikesShimano BL-MT501 Bled Brake Lever/BR-MT520 4 Pot Post Mount Caliper

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Product Information

Full details

The Shimano MT501/MT520 hydraulic disc brake system is designed for mountain bike riders seeking high-power stopping performance and reliable modulation. This 4-piston setup delivers consistent braking control across varied terrain, though its robust design adds slightly more weight compared to dedicated cross-country racing systems. It is an ideal upgrade for trail, enduro, and e-bike applications where durability and consistent power are paramount.

All features

Series	MT500
Model Part Number	MT501BLR
Brand	Shimano

Extended Product Information

FAQs

What type of brake fluid should I use?

This system requires genuine Shimano mineral oil. Never use DOT fluid.

Is this brake compatible with I-Spec-EV shifters?

No, this system is specifically designed for the I-Spec-II mounting standard.

Can I use these on my E-bike?

Yes, the 4-piston design is highly recommended for the added weight and speed of e-bikes.

Does the system come with rotors included?

No, rotors must be purchased separately based on your specific wheel hub type (6-bolt or Center-Lock).

What is the hose length?

The provided hose is 1700mm, which is sufficient for most rear brake routing on mountain bikes.

Can I upgrade the brake pads?

Yes, you can swap the included resin pads for metallic or finned pads if you prefer more aggressive braking performance.

Troubleshooting

Spongy brake lever feel

The system likely contains air. Perform a professional bleed using Shimano mineral oil and a bleed funnel kit.

Squealing or noisy braking

Clean the rotor with isopropyl alcohol and check for pad contamination. Ensure the caliper is properly centered over the rotor.

Lever pull is too deep or shallow

Use the integrated reach adjustment screw on the lever to set the distance according to your preference.

Pros and Cons

Pros

Excellent stopping power due to 4-piston design
Easy to customize lever reach
Reliable and low-maintenance mineral oil system
Versatile rotor compatibility (160mm to 203mm)
Rigid, durable construction

Cons

Heavier than 2-piston alternatives
Requires specific bleeding tools for maintenance
I-Spec-II compatibility may require adapter for older shifters

Setup, Compatibility & Care

This system arrives pre-bled and ready for installation. Ensure your frame has a post-mount interface or use the appropriate adapter to fit your mount type.

Installation: Mount the caliper to the frame and route the 1700mm hose, ensuring there are no sharp kinks or tight bends.
Hose Adjustment: If the hose must be shortened, use the included spare olive and insert to maintain a leak-free connection.
Compatibility: The system is compatible with both 6-bolt and Center-Lock rotors. Always clean rotors with isopropyl alcohol before the first ride.
Maintenance: Regularly check for pad wear. If the lever feels spongy, perform a standard Shimano mineral oil bleed process to remove trapped air.