Shimano GRX BR-RX820 Disc Brake Caliper Size:Front the GX Eagle rear derailleur

the GX Eagle rear derailleur delivers unprecedented shifting performance

This enable the SPEED MULLET to work flawlessly with downtube mounted cables

A faster-gripping initial braking force always gives the feeling of full control

Once the chain is dry you can apply the lube normally like instructed below

A special dark-touch function facilitates the use of the bicycle lock in the dark thanks to a special imprinting

Shimano GRX BR-RX820 Disc Brake Caliper Size:Front the GX Eagle rear derailleurThe Shimano GRX BR RX820 2 piston disc brake caliper brings a high level of control to gravel cycling with enhanced modulation and a quick initial braking point. Despite its smaller construction, the system is exceptionally quiet and easy to maintain Features 2 piston caliper features 10% wider pad clearance to decrease brake noise One way maintenance friendly bleeding process for quick and easy prevention of air bubbles in the hydraulic system