Shimano GRX ST-RX825 Disc Brake Set - Front
Brakes
Shimano GRX ST-RX825 Disc Brake Set - Front
Shimano GRX ST-RX825 Disc Brake Set - Front
Factory pre-bled front braking from the Shimano GRX ST-RX825
The Shimano GRX ST-RX825 Disc Brake Set Front is built for gravel and adventure bikes that need complete, factory-ready front braking, pairing the GRX Dual Control lever with the BR-RX820 flat mount caliper as a pre-bled J-Kit. Read the overview
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Overview
Factory pre-bled front braking from the Shimano GRX ST-RX825
The Shimano GRX ST-RX825 Disc Brake Set Front is built for gravel and adventure bikes that need complete, factory-ready front braking, pairing the GRX Dual Control lever with the BR-RX820 flat mount caliper as a pre-bled J-Kit. The RX825 lever brings GRX ergonomics built for gravel: a textured hood and lever blade for secure control on rough terrain, plus the reach and power adapted for long days in the drops.
This is the front assembly, featuring a left lever, the BR-RX820 caliper set for a 160mm rotor, resin pads with cooling fin, and a 1000mm SM-BH90 hose with connector insert already installed. The pre-bled J-Kit design means clean, consistent braking with minimal setup time, ideal for shops and builders who want reliable GRX stopping power without bleeding the system from scratch.
All the specs
- Series
- Shimano GRX
- Generation
- RX825
- Position
- Front (left lever)
- Lever
- ST-RX825 (L)
- Caliper
- BR-RX820 (F)
- Rotor Mount
- 160mm
- Pad Type
- Resin with fin
- Hose
- SM-BH90, 1000mm, connector insert installed
- Pre-Bled Kit
- Yes (J-Kit Direct)
- Caliper Material
- Aluminum
- MPN
- IRX8251DLF6SC100A
Good questions
Get to know Shimano
There's more to Shimano than this one product. Our Shimano page has the full Shimano lineup we carry and more about the brand.
Visit the Shimano page →Is this the front or rear assembly?
This is the front set: left lever with the front caliper, configured for a 160mm rotor with a 1000mm hose. The rear set is sold separately.
Does it come pre-bled?
Yes. The J-Kit Direct design ships pre-bled with the hose and connector insert installed, so it is ready to mount with minimal setup.
What rotor size does it support?
The front caliper is set up for a 160mm rotor.
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