Shimano GRX RX400 Rear Derailleur - 10 Speed - Black / 10 Speed
Shimano GRX RX400 Rear Derailleur - 10 Speed - Black / 10 Speed
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 8 Jan 2026)
Based on a total of 79,145 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 79,145 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 Price
2-3 days
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£39.95
Delivery from £3.95
Shimano Grx Rx400 Shadow Rd+ Direct Rear Derailleur Black 10s / Max 36t
Overall Rating: 3.9 / 5 (average from multiple review sources, as of 9 Jan 2026)
Based on a total of 34,936 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 34,936 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.
2 working day(s)
PayPal
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DIRECTebanking
DIRECTebanking
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£39.99
Delivery from £6.99
Shimano GRX RD-RX400 GRX 10-speed rear derailleur, Shadow+, for double, Black
Cheapest Total Price
In stock
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Visa
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Mastercard
£42.70
Free Delivery
Shimano GRX RD-RX400 GRX 10-speed rear derailleur, Shadow+, for double, Black
Cheapest Total Price
In stock
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£42.70
Free Delivery
Shimano GRX RD-RX400 GRX 10-speed rear derailleur, Shadow+, for double, Black
Overall Rating: 2.4 / 5 (average from multiple review sources, as of 9 Jan 2026)
Based on a total of 45,295 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 45,295 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
In stock. Express Delivery available with Amazon Prime.
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£42.70
Free Delivery
Shimano GRX RD-RX400 GRX 10-speed rear derailleur, Shadow for double
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 8 Jan 2026)
Based on a total of 21,515 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 21,515 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 1 - 4 working days of receiving cleared payment.
PayPal
PayPal
Visa
Visa
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Mastercard
£44.99
Free Delivery
Shimano GRX RD-RX400 GRX 10-speed rear derailleur, Shadow+, for double, Black
In stock. Express Delivery available with Amazon Prime.
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£45.62
Free Delivery
Shimano GRX Rear Derailleur Shadow+ RD-RX400 - 2 x 10 Speed
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 8 Jan 2026)
Based on a total of 21,515 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 21,515 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 3 - 7 working days of receiving cleared payment.
PayPal
PayPal
Visa
Visa
Mastercard
Mastercard
£49.99
Free Delivery
Rear Derailleur 2x10 Speeds GRX RX400 36T Max SHIMANO Bicycle
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 8 Jan 2026)
Based on a total of 21,515 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 21,515 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 18 - 34 working days of receiving cleared payment.
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PayPal
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Visa
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Mastercard
£51.70
Delivery from £17.23
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Shimano GRX RX400 Rear Derailleur - 10 Speed - Black / 10 Speed - Details
▶ Finding you the best price!
We have found 9 prices for Shimano GRX RX400 Rear Derailleur - 10 Speed - Black / 10 Speed. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Shimano GRX RX400 Rear Derailleur - 10 Speed - Black / 10 Speed - Price Information
- Cheapest price: £39.95
- The cheapest price is offered by merlincycles.com(UK) . You can order the product there.
- The price range for the product Shimano GRX RX400 Rear Derailleur - 10 Speed - Black / 10 Speed is €£39.95to €£51.70 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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Cheapest offer
Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world. Low profile Shadow Plus design 10-speed rear derailleur for fast and precise shifting performance. Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting. Compatible with 10-speed HG chains. Wide gear ratio compatible up to 11-36T. For use with double chainset. Weight: 303g.
£39.95
2-3 days
merlincycles.com(UK)
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