Shimano GRX RX815 Di2 Rear Derailleur - 11 Speed - Black / 11 Speed
Shimano GRX RX815 Di2 Rear Derailleur - 11 Speed - Black / 11 Speed
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 24 Dec 2025)
Based on a total of 79,078 customer reviews from independent review platforms.
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Based on a total of 79,078 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
2-3 days
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£139.99
Delivery from £5.99
Shimano GRX Di2 RD-RX815 11-Speed Shadow+ Double Rear Mech
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Dec 2025)
Based on a total of 21,561 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 21,561 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 5 - 9 working days of receiving cleared payment.
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£219.95
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Shimano GRX RD-RX815 GRX Di2, 11-speed rear derailleur, Shadow+, for double, Black
Overall Rating: 2.4 / 5 (average from multiple review sources, as of 25 Dec 2025)
Based on a total of 45,785 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 45,785 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
In stock. Express Delivery available with Amazon Prime.
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£220.40
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Shimano GRX RD-RX815 GRX Di2 - 11-speed Rear Derailleur - Shadow+ Doub
Overall Rating: 3.6 / 5 (average from multiple review sources, as of 13 Dec 2025)
Based on a total of 4,538 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 4,538 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
1-3 working days
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£224.99
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Shimano GRX RD-RX815 GRX Di2, 11-speed rear derailleur, Shadow+, for double, Black
Usually dispatched within 7 to 8 days
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£228.64
Free Delivery
Shimano GRX RD-RX815 GRX Di2, 11-speed rear derailleur, Shadow+, for double, Black
Usually dispatched within 6 to 7 months. Express Delivery available with Amazon Prime.
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£231.68
Free Delivery
Shimano GRX RD-RX815 GRX Di2, 11-speed rear derailleur, Shadow+, for double
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Dec 2025)
Based on a total of 21,561 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 21,561 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 7 - 9 working days of receiving cleared payment.
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£257.20
Free Delivery
Shimano GRX RD-RX815 GRX Di2, 11-speed rear derailleur, Shadow+, for double, Black
Usually dispatched within 9 to 10 days
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£270.33
Delivery from £9.99
Shimano GRX RD-RX815 DI2 11 Speed Rear Derailleur Shadow For Double - SGS Long
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 24 Dec 2025)
Based on a total of 21,561 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 21,561 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 12 - 19 working days of receiving cleared payment.
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£280.54
Free Delivery
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Shimano GRX RX815 Di2 Rear Derailleur - 11 Speed - Black / 11 Speed - Details
▶ Finding you the best price!
We have found 9 prices for Shimano GRX RX815 Di2 Rear Derailleur - 11 Speed - Black / 11 Speed. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Shimano GRX RX815 Di2 Rear Derailleur - 11 Speed - Black / 11 Speed - Price Information
- Cheapest price: £139.99
- The cheapest price is offered by merlincycles.com(UK) . You can order the product there.
- The price range for the product Shimano GRX RX815 Di2 Rear Derailleur - 11 Speed - Black / 11 Speed is €£139.99to €£280.54 with a total of 9 offers.
- Payment methods: The online shop merlincycles.com(UK) supports: Visa, Mastercard
- Delivery: The shortest delivery time is 2-3 days working days offered by merlincycles.com(UK) .
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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 RX815 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. Features Silent and uninterrupted rear shifting on rough terrain. Adjustable chain stabilizer prevents chain slapping and drops. Shimano Shadow RD+. Smooth and reliable mixed surface shifting. Switch stabilizer ON/OFF to match the terrain. Gravel-tuned clutch tension. Compatible with current road Dual Control Levers. Maximum front difference: 17T. Top sprocket: Max. 11T/Min. 11T. Low sprocket: Max. 34T/Min. 30T. Total capacity: 38T.
£139.99
2-3 days
merlincycles.com(UK)
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