Shimano 105 BR-R7070 Dealer's Manual

Shimano 105 BR-R7070 Brake Lever manual cover
Pages 67
Year 2021
Language(s)
English en

Shimano 105 BR-R7070 Brake Lever Specification

The Shimano 105 BR-R7070 Brake Lever is a high-performance hydraulic disc brake component designed for road cycling enthusiasts seeking reliable and consistent stopping power. This brake lever is part of the Shimano 105 R7000 series, which is renowned for its balance of performance, durability, and affordability. The BR-R7070 features a sleek and ergonomic design, providing cyclists with a comfortable grip and precise control under various riding conditions. It is constructed from lightweight yet robust materials, ensuring durability and resilience against the rigors of regular cycling.

The hydraulic system of the BR-R7070 offers superior modulation and power, allowing for smooth and efficient braking. This system is sealed to prevent contamination and ensure consistent performance in wet or dusty environments. The lever reach is adjustable, accommodating different hand sizes and preferences for optimal comfort and control. Additionally, the lever integrates seamlessly with Shimano's STI (Shimano Total Integration) system, allowing for effortless shifting and braking from the same unit.

Compatibility with Shimano's Ice Technologies rotor further enhances heat dissipation, providing stable braking performance on long descents. The Shimano 105 BR-R7070 brake lever is designed to work in harmony with Shimano's 105 hydraulic disc calipers, ensuring a unified and efficient braking system. Its polished aesthetics complement a wide range of bicycle frames, making it an attractive choice for cyclists looking to upgrade their braking system without compromising on style or performance. This brake lever exemplifies Shimano's commitment to delivering top-tier technology to a broader audience, making it a versatile and essential component for modern road bikes.

Shimano 105 BR-R7070 Brake Lever F.A.Q.

How do I adjust the reach on the Shimano 105 BR-R7070 brake lever?

To adjust the reach, locate the reach adjustment screw on the inside of the brake lever. Use a small Allen key to turn the screw clockwise to reduce the reach or counterclockwise to increase it, ensuring the lever is comfortably accessible for your hand size.

What should I do if the Shimano 105 BR-R7070 brake lever feels spongy?

A spongy brake lever typically indicates air in the hydraulic system. Bleed the brakes using a Shimano bleed kit, following the Shimano's bleeding procedure to remove any trapped air and restore firm lever feel.

How can I replace the brake pads on my Shimano 105 BR-R7070 calipers?

First, remove the wheel. Use a 3mm Allen key to remove the retaining pin. Slide the old pads out and insert the new ones. Reinsert the pin and ensure it's secure. Check alignment and rotor clearance before reattaching the wheel.

Why is my Shimano 105 BR-R7070 brake lever not returning to its original position?

This issue might be due to dirt or debris in the lever mechanism or a problem with the hydraulic system. Clean the lever and inspect for obstructions. If the issue persists, check the hydraulic line for blockages or damage.

How often should I perform maintenance on my Shimano 105 BR-R7070 brake system?

Regular maintenance should be performed every six months, or more frequently if you ride in harsh conditions. This includes checking pad wear, cleaning the rotors, and bleeding the brakes if necessary.

What type of brake fluid should I use with Shimano 105 BR-R7070 brakes?

Shimano hydraulic brakes, including the 105 BR-R7070 model, require Shimano Mineral Oil. Using other types of brake fluid can damage the system and void warranties.

Can I use Shimano 105 BR-R7070 levers with non-Shimano calipers?

While it's possible to mix components, it's not recommended as the system is designed for optimal performance with Shimano parts. Compatibility issues can affect braking performance and reliability.

What is the proper way to clean Shimano 105 BR-R7070 brake rotors?

Use isopropyl alcohol and a clean, lint-free cloth to wipe down the rotors. Avoid oil-based cleaners to prevent contamination. Regular cleaning maintains optimal braking performance.

How do I align the Shimano 105 BR-R7070 brake calipers to eliminate rotor rub?

Loosen the caliper mounting bolts slightly, squeeze the brake lever to center the caliper over the rotor, and retighten the bolts while holding the lever. This ensures the caliper is aligned properly.

Why might my Shimano 105 BR-R7070 brakes squeal, and how can I fix it?

Squealing brakes can be due to contamination or misalignment. Clean the rotors and pads thoroughly, and ensure proper alignment of the calipers. Bedding in new pads properly can also reduce noise.