Shimano SLX 4 Pot Hydraulic Disc Brake - M7120BRF

The Shimano BR-M7120 / BL-M7100 SLX Disc Brake Set is a powerful and dependable braking solution d...

Best current price£130.49from eBay

All Offers

9 offers from £130.49 - £174.99

View price history by clicking the chart icon.

eBayShimano SLX Rear Disc Brake BR-M7120/BL-M7100 4 Pot Bled Post Mount Calliper LH
Free delivery in 1–3 days
£130.49
Visit shop
TredzShimano Black Br-M7120/Bl-M7100 Slx Pot Bled Brake Size 4
Free delivery in 1–3 days
£169.99
Visit shop
Leisure Lakes BikesShimano BR-M7120/BL-M7100 SLX 4pt Bled Brake Lever/Post Mount Calliper
Free delivery in 1–3 days
£174.99
Visit shop

Product Information

Full details

The Shimano BR-M7120 / BL-M7100 SLX Disc Brake Set is designed for aggressive trail and enduro riders seeking powerful, reliable stopping. Its key benefit is the four-piston caliper delivering superior braking power and control. A potential caveat is that rotors and adaptors are sold separately. This fully bled set offers excellent modulation and consistent performance, built on Shimano’s trusted SLX platform, balancing strength, control, and durability for demanding mountain biking.

All features

SeriesSLX
Model Part NumberM7120BRF
BrandSHIMANO

Extended Product Information

FAQs

Are rotors and adaptors included with this brake set?

No, rotors and frame/fork adaptors are sold separately. You will need to purchase these according to your bike's specifications.

What type of brake fluid does this system use?

This brake set uses Shimano's non-corrosive mineral oil. Do not use DOT fluid, as it can damage the brake system.

Can I shorten the brake hoses myself?

Yes, the brake set includes spare olives and inserts. You can cut the hoses to your desired length and re-install the fittings following proper bleeding procedures.

What is the advantage of a 4-piston caliper?

A 4-piston caliper provides significantly more braking power and better modulation compared to a 2-piston system, which is beneficial for aggressive riding and steep descents.

How do I integrate these brakes with my shifters?

These levers are compatible with Shimano's I-Spec EV gear shifters. This allows for a clean, integrated mounting solution on the handlebars.

Is this brake set suitable for downhill or freeride?

While designed for aggressive trail and enduro, the 4-piston SLX M7120 offers substantial power. For extreme downhill, higher-tier Shimano brakes like Saint or XT may offer additional performance and durability, but the SLX M7120 is a very capable option for many aggressive riders.

How often should I bleed my brakes?

The frequency depends on riding conditions and usage. Typically, bleeding is recommended annually or when you notice a spongy lever feel, reduced braking performance, or have serviced the brake system.

Troubleshooting

Brake lever feels spongy or has reduced power.

The brake system likely needs bleeding. Follow the Shimano bleeding procedure using fresh mineral oil and ensure all air is removed from the lines.

Brake pads are rubbing against the rotor.

Ensure the caliper is centered correctly over the rotor. Loosen the caliper mounting bolts slightly, squeeze the brake lever firmly, and re-tighten the bolts while holding the lever. Check that the rotor is true and the wheel is properly seated.

Brake lever does not return fully.

Check for any obstructions or kinks in the brake hose. Ensure the brake lever is not catching on other components or the handlebar. The return spring may be compromised if the issue persists.

Noisy brakes (squealing or grinding).

Contaminated or worn brake pads are a common cause. Clean the rotor and pads with isopropyl alcohol or a dedicated disc brake cleaner. If noise persists, consider replacing the pads and ensuring the rotor is clean.

Brake lever is too far from the grip.

Use the tool-less reach adjuster on the lever to bring it closer to the grip for a more comfortable position.

Pros and Cons

Pros

  • Exceptional stopping power for demanding trails.
  • Great modulation and control for technical descents.
  • Durable and reliable SLX platform construction.
  • Easy installation with hinged clamp and I-Spec EV compatibility.
  • Comfortable lever design with tool-less reach adjustment.
  • Excellent value for a 4-piston hydraulic brake system.

Cons

  • Rotors and adaptors are sold separately, adding to the total cost.
  • Requires specific Shimano bleeding tools and mineral oil for maintenance.
  • Hose length may need to be cut and re-bled for custom fitment.
  • Four-piston system may be overkill for casual trail riding.
  • Requires compatible I-Spec EV shifters for full cockpit integration.

Setup, Compatibility & Care

Setup:

  1. Ensure you have the necessary tools, including Allen keys, hose cutters, and a Shimano bleeding kit.
  2. Remove the rubber bungs from the lever and caliper.
  3. Connect the lever, caliper, and hose using the provided spare olives and inserts if hose length needs adjustment. For custom lengths, cut the hose cleanly and install new olives and inserts.
  4. Mount the caliper to the frame or fork using appropriate adaptors (sold separately) and rotor (sold separately).
  5. If integrating with I-Spec EV shifters, follow Shimano's instructions for mounting the shifter to the brake lever clamp.
  6. Follow the bleeding procedure using Shimano mineral oil to ensure optimal performance.

Compatibility:

  • Compatible with Shimano I-Spec EV shifters for integrated cockpit control.
  • Requires IS or Post Mount frame/fork fitment with appropriate adaptors (sold separately).
  • Requires Shimano-compatible hydraulic disc brake rotors (sold separately).
  • Uses Shimano hydraulic mineral oil exclusively.

Care:

  • Regularly clean the caliper and rotor with a degreaser suitable for disc brakes.
  • Inspect brake pads for wear and replace as needed.
  • Periodically check the brake fluid level and perform a bleed if lever feel becomes spongy or inconsistent.
  • Avoid contact with petroleum-based solvents, which can damage seals.

Price History

DatePrice
Visit shop