Short Description
The Shimano Tiagra BR-R451 57 mm Rear Brake Caliper delivers reliable and powerful braking performance for road bikes requiring a longer brake reach. Featuring Shimano's proven dual-pivot design, SUPER SLR compatibility and generous tyre clearance, it provides smooth modulation and dependable stopping power for commuting, touring and endurance road riding.
Key Features
- 57 mm Long-Reach Design: Ideal for frames requiring extended brake reach while maintaining excellent braking performance.
- Dual-Pivot Caliper: Delivers smooth, responsive braking with improved power and modulation.
- SUPER SLR Compatible: Designed to work with Shimano SUPER SLR brake systems for light lever action and precise control.
- 32 mm Tyre Clearance: Accommodates wider tyres for improved comfort and versatility.
- Quick Release Mechanism: Makes wheel removal and installation quick and straightforward.
- Adjustable Brake Shoes: Allows precise toe-in adjustment for quieter braking and improved pad performance.
Product Overview
The Shimano Tiagra BR-R451 Rear Brake Caliper is designed for road bikes requiring a 57 mm brake reach, making it an excellent choice for touring bikes, endurance road bikes and older road frames with greater clearance requirements. Its lightweight dual-pivot construction delivers strong, predictable braking while maintaining excellent control in both dry and wet conditions. Compatible with Shimano SUPER SLR brake systems, the BR-R451 offers light lever action and consistent braking performance. The generous tyre clearance of up to 32 mm also makes it suitable for riders seeking additional comfort and versatility without sacrificing braking confidence. Built with Shimano's renowned reliability, this rear caliper is an ideal replacement or upgrade for compatible road bikes.
Specifications
- Brand: Shimano
- Series: Tiagra
- Model: BR-R451
- Position: Rear
- Product Type: Road rim brake caliper
- Brake Type: Dual-pivot caliper
- Reach: 57 mm
- Brake System Compatibility: Shimano SUPER SLR
- Maximum Tyre Clearance: Up to 32 mm
- Brake Shoes: Shimano R50T2
- Quick Release: Yes
- Brake Shoe Angle Adjustment: Yes
- Colour: Black
Ideal For
- Road bikes requiring 57 mm brake reach
- Touring and endurance road bikes
- Commuter bikes with caliper rim brakes
- Replacing worn or damaged rear brake calipers
What’s Included
- 1 × Shimano Tiagra BR-R451 Rear Brake Caliper
- 1 × Pair of Shimano R50T2 brake pads (pre-installed)
- Mounting hardware
Care & Notes
Check brake pad alignment and cable tension before riding. Inspect brake pads regularly for wear and replace when necessary. Ensure mounting bolts are tightened to Shimano's recommended torque specifications for safe operation.
Why Buy From LK Bikes
LK Bikes supplies genuine Shimano components backed by expert advice, fast dispatch and dependable aftersales support. Whether you're maintaining a classic road bike or upgrading your touring machine, you can shop with confidence.
