GRX RD-RX812 Rear Derailleur

$173.99

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Quantity

From per month with

i or with

Availability

Free shipping within Canada on most orders over $150

Returns accepted until January 15, 2026

Extended price matching until December 15, 2025

Please note, items may not be exactly as pictured

Description

With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain.

For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. The RD-RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max.

Specifications

Average weight	267 g
B-Axle_Hollow axle	_
Cable adjuster	_
Compatible chain	HG-EV 11-speed/HG-X11
Direct attachment (Conventional)	_
Fluoric coated link bushings	4
Low sprocket_Max.	42T
Low sprocket_Min.	40T
Pulley_G pulley bearing	_
Pulley_Sunken type pulley bolt	_
Pulley_Teeth	11T
Pulley_T pulley bearing	_
Rear speeds	11
Top-Normal Spring Type	SHIMANO SHADOW RD+
Top sprocket_Max.	11T
Top sprocket_Min.	11T
Total capacity	31T