Shimano GRX Brake Caliper BR-RX820 w/ Resin Pads - black/rear flat mount

Shimano GRX Brake Caliper BR-RX820 w/ Resin Pads

Item number: 90399

Shimano GRX BR-RX820 brake caliper - perfect braking performance on off-road adventures


The BR-RX820 is the optimal brake caliper for the GRX RX820 gravel groupset from Shimano. The hydraulic flat-mount model impresses with excellent brake control, improved modulation and faster conversion of inputs. It is built more compactly than its predecessor and has 10% more space for the brake pads, which reduces noise. The simple bleeding process via one-way bleeding is well known. The BR-RX820 is made of lightweight aluminium, has two brake pistons made of synthetic resin and a straight hose connection. It comes with organic pads with Ice-Tech cooling fins for heat dissipation. Of course, it is also compatible with sintered pads and can be combined with brake rotors from 140 to 180 mm.

Specifications:

Series:
GRX RX820
Application:
Gravel
Type:
hydraulic, 2 pistons
Actuation:
mineral oil
Hose:
SM-BH90-JK-SSR, SM-BH90-J-SSR (not included)

Technical Information - Caliper:

Caliper Mount:
flat mount
Pads:
resin with cooling fins
Design:
2-piece
Calliper Material:
aluminium
Piston Material:
resin
Hose Connection:
straight

Compatibility:

Brake Rotor:
140 mm, 160 mm, 180 mm (recommended: RT-CL800)
Pads:
organic and sintered; with narrow pad shape; standard and Ice Tech brake pads
Recommended Brake Lever:
ST-RX820, ST-RX820-LA, BL-RX820, also compatible with ST-R9270, ST-R8170, ST-R7120, ST-R7170, ST-RX610, BL-RX610-L, ST-R9120, ST-R9170, ST-R8020, ST-R8025, ST-R8070, ST-R7020, ST-R7025, ST-RX810, ST-RX810-LA, ST-RX810-LE, BL-RX810, ST-RX815, ST-RX600, BL-RX600, ST-RX400, ST-4720, ST-4725 and additional brake lever BL-RX812

Features:

  • hydraulic disc brake caliper with flat-mount design for gravel use
  • more control through better modulation
  • faster initiation of the braking process
  • less noise thanks to 10% larger brake pad spacing
  • more compact than predecessor model
  • simple bleeding process
  • 2 pistons made of synthetic resin
  • painted
  • steel bolts (4 mm)

Technology:

One Way Bleeding
One Way Bleeding is a technique used on Shimano calipers that facilitates brake bleeding. The hose routing has been optimised so that no air bubbles remain in the brake calliper. In combination with the funnel, the brake can be bled cleanly and easily.

Manufacturer Numbers:

Front Flat Mount:
IBRRX820F6RF
Rear Flat Mount:
IBRRX820RDRF

Contents:

  • 1 x Shimano GRX BR-RX820 brake caliper
  • 1 x pair Shimano resin brake pads with cooling fins
  • 1 x disc brake adapter for front 140/160 + 160/180 mm (only for front)
  • 2 x type A caliper bolts (front)
  • 2 x caliper bolts for 25 mm frame diameters (rear)

Order Together:

Optional accessories:


Weight:

  • black/front flat mount: 146 g
  • black/rear flat mount: 136 g
  • 100 day return period
  • Online since 1998

Models:

  • black/front flat mount, in stock
    50.19€
  • black/rear flat mount, in stock
    41.54€

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