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 31 offers
The lowest price for Shimano Rear Derailleur GRX RD-RX820 2x12 Speed right now is $100.00 at Just Ride Nerang, compared across 26 retailers.
The all-time low was $84.27 on 24 Oct 2026 — today's price is 19% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 29 Oct 2026.
Last updated at 29/10/2026 05:56:58
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 GRX RD-RX820 12-speed | Evolution Bikes
Delivery $110.95
Shimano (Cycling) Rd-rx820 Grx Rear Derailleur 2x12 Speed Irdrx820
Delivery between 5–9 Nov $107.88
Shimano Rear Derailleur GRX RD-RX820 2x12 Speed
Free delivery between 3–11 Nov
Shimano GRX RD-RX820 12S rear derailleur
Delivery between Fri – Mon $39.66
Shimano Grx Rd-rx820 2x12-speed Gravel Road Bike Rear Derailleur For
Free delivery
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 GRX RD-RX820 2x12V Rear Derailleur
Delivery $63.99
RD-RX820 REAR DERAILLEUR GRX SHADOW+ 12-SPEED 36T MAXIMUM 2x12
Delivery between 3–11 Nov $19
Shimano GRX RD-RX820 Shadow+ 12 Speed Rear Derailleur - Black Long Cage 2x12 36T Max
Free delivery
| 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 GRX RD-RX820 12-speed | Evolution Bikes
Delivery $110.95
Shimano (Cycling) Rd-rx820 Grx Rear Derailleur 2x12 Speed Irdrx820
Delivery between 5–9 Nov $107.88
Shimano Rear Derailleur GRX RD-RX820 2x12 Speed
Free delivery between 3–11 Nov
| 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) |
