ClickCease
  • Free Delivery

    On all orders over £20

  • Trustpilot 5 Stars

    View our reviews

  • Easy 90 Day Returns

    Collect or drop-off easy returns

  • Same Day Collection

    Available on all Bikeparts+ items

Shimano GRX  |  SKU: RDRX820

Shimano GRX RD-RX820 12-Speed Rear Derailleur - Shadow RD+ - Blac

£101.99 £119.99
VAT included Shipping calculated at checkout.
RD-RX820
RD-RX822-GS
RD-RX822-SGS

Description

Enhanced chain security and quieter, more stable shifting for gravel riding

The RD-RX820 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.

  • Silent and secure rear shifting on rough terrain
    • Adjustable chain stabilizer prevents chain slap and drops
    • SHIMANO SHADOW RD+
  • Smooth and reliable shifting on mixed surfaces
    • ON/OFF stabilizer switch matches terrain
  • Maximum front chainring difference: 17T
  • Top sprocket: Max. 11T/Min. 11T
  • Low sprocket: Max. 36T/Min. 34T
  • Total capacity: 42T

Shimano GRX RX820 Rear Mech Information

Specifications

  • Brand
    Shimano
  • Size
    One size
  • Speed
    12 Speed
  • Colour
    Grey

Payment & Delivery

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Delivery Information

Standard Delivery - 2-4 Business Days 
Express Priority - 1-3 Business Days
Royal Mail Tracked 24 - 1 Business Day
DHL Next Day - 1 Business Day

Services are determined at checkout on a per product basis.

Shimano GRX

Shimano GRX RD-RX820 12-Speed Rear Derailleur - Shadow RD+ - Blac

£101.99 £119.99

Enhanced chain security and quieter, more stable shifting for gravel riding

The RD-RX820 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 RX820 Rear Mech Information

View product