Shimano Rear Derailleur GRX RD-RX820 2x12 Speed
Shimano GRX RD-RX820 12-Speed Rear Derailleur Max 36T The GRX RD-RX820 12-Speed Rear Derailleur Max 36T is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The SHIMANO GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.
Shimano GRX RD-RX820 12-Speed Rear Derailleur Max 36T The GRX RD-RX820 12-Speed Rear Derailleur Max 36T is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The SHIMANO GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.
Shimano GRX RD-RX820 12-Speed Rear Derailleur Max 36T The GRX RD-RX820 12-Speed Rear Derailleur Max 36T is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The SHIMANO GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.
Shimano GRX RD-RX820 12-Speed Rear Derailleur Max 36T The GRX RD-RX820 12-Speed Rear Derailleur Max 36T is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The SHIMANO GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.
in 54 offers
The lowest price for Shimano Rear Derailleur GRX RD-RX820 2x12 Speed right now is $100.00 at Just Ride Nerang, compared across 24 retailers.
The all-time low was $100.00 on 9 Oct 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 11 Oct 2026.
Last updated at 11/10/2026 12:38:56
Shimano Rear Derailleur 2x12s Cycling Accessories, Adults, Unisex, Multicoloured, One Size
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano RX820 GRX 12Spd Rear Derailleur OEM - JUST RIDE Nerang
Free delivery
Shimano (Cycling) Rd-rx820 Grx Rear Derailleur 2x12 Speed Irdrx820
Delivery between 16–20 Oct $108.38
Shimano Rear Derailleur GRX RD-RX820 2x12 Speed
Free delivery between 14–22 Oct
Shimano GRX RD-RX820 12S rear derailleur
Delivery between Mon – Tue $40.14
Shimano GRX RD-RX820 2x12V Rear Derailleur
Delivery $64.99
RD-RX820 REAR DERAILLEUR GRX SHADOW+ 12-SPEED 36T MAXIMUM 2x12
Delivery between 14–22 Oct $19
Shimano GRX RD-RX820 Shadow+ 12 Speed Rear Derailleur - Black Long Cage 2x12 36T Max
Free delivery
Shimano GRX RD-RX820 2x 12 Speed Rear Derailleur
Free delivery between Wed – Sat
Shimano RD-RX820 Grx Shadow+ 12 Speed Rear Derailleur
Delivery between Wed – Fri $9.95
| Number Of Speeds | 12-speed |
| Shifting Type | Mechanical |
| Size | Wider-range (11-36T cassette), More compact (10-45T cassette), Wider range (10-51T cassette) |
| Weight | 270 g (manufacturer information) |
| Chainline | 2.5 mm offset (compared to road components) |
Shimano Rear Derailleur 2x12s Cycling Accessories, Adults, Unisex, Multicoloured, One Size
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Shimano RX820 GRX 12Spd Rear Derailleur OEM - JUST RIDE Nerang
Free delivery
Shimano (Cycling) Rd-rx820 Grx Rear Derailleur 2x12 Speed Irdrx820
Delivery between 16–20 Oct $108.38
Shimano Rear Derailleur GRX RD-RX820 2x12 Speed
Free delivery between 14–22 Oct
Shimano GRX RD-RX820 12S rear derailleur
Delivery between Mon – Tue $40.14
| Number Of Speeds | 12-speed |
| Shifting Type | Mechanical |
| Size | Wider-range (11-36T cassette), More compact (10-45T cassette), Wider range (10-51T cassette) |
| Weight | 270 g (manufacturer information) |
| Chainline | 2.5 mm offset (compared to road components) |
