SHIMANO GRX - DI2 - Rear Derailleur - SHIMANO SHADOW RD+ - 34T max low sprocket - 11-speed 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 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. and is compatible with road cassettes with a 34T low sprocket max.
Adjustable chain stabilizer prevents chain slapping and drops
Switch stabilizer ON/OFF to match the terrain
Gravel-tuned clutch tension
Silent and uninterrupted rear shifting on rough terrain
Smooth and reliable mixed surface shifting
Compatible with current road DUAL CONTROL LEVER
Top sprocket: Max. 11T/Min. 11T
Low sprocket: Max. 42T/Min. 40T
Total capacity: 31T
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We send all orders as quickly as we can which is normally the same working day if ordered before 3pm (Monday to Friday excluding Bank Holidays). Small packages are sent using Royal Mail First Class, Tracked 48 and Special Delivery for higher value items. Bulkier items like Wheels, Frames and Home Trainers are sent with one of our couriers either DPD or DHL. All orders are fully insured and most will require a signature on delivery. Standard delivery is 1-2 working days. Order places over the weekend or on Bank Holiday will be sent with our next working day collection.
We have thousands of items in stock ready to despatch from our large warehouse.
- In stock - Ready to despatch - In stock in our warehouse ready to ship out normally the same working day when ordered before 3pm
- In stock - 2 - 3 day despatch - In stock in our suppliers warehouse. Once we receive your order we will order from our supplier and ship out to you as soon as the item arrives in our warehouse.
We offer an optional Next Working Day Delivery service for orders placed before 3pm. (Next Working Day Delivery when ordered Monday to Friday Before 3pm - Excluding Bank Holidays). Depending on the size and weight of the item and your postal location we send with Royal Mail Special Delivery 1pm our Courier DPD or DHL on their 24 hour service. Remote Highland and Island locations may not be guaranteed next working day.
International shipping rates are calculated by the weight and value of the items and the country they are being shipped to. To get a shipping quote just add the items to your basket and use the Shipping Estimator at the bottom of the basket page to calculate the shipping rates to your country. Depending on weight and value of your order we send with Royal Mail Standard Airmail, Signed For or Tracked service. Standard delivery time is 5-15 working days for most European countries and 5-25 working days for most other countries.
We offer DHL Express as a much quicker delivery option for Europe, US and Worldwide. Most of Europe and USA is 1-2 working day delivery. Other countries 2-4 working days.
We accept most major credit and debit cards along with PayPal, Apple Pay and Google Pay through our secure checkout process. You will be asked to enter your card details and the billing name and address of the card holder when you place your order. Other payment methods will guide you through the payment process.
For your security and privacy, we do not store any payment card information.
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+44 (0) 1704 841529