
Shimano GRX RD-RX400 10-Speed Shadow+ Rear Derailleur - For Double
by Shimano
£55.24
GTIN04550170448899
EAN4550170448899
MPNRDRX400
Prices updated 16 Mar 2026
Compare 1 Retailer
£64.99£55.24
Best PriceAmazon
Check availability and price on Amazon.co.uk
Deals & Voucher Codes
Product Description
With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain.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 worldLow profile Shadow Plus design 10-speed rear derailleur for fast and precise shifting performanceShadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shiftingCompatible with 10-speed HG chainsWide gear ratio compatible up to 11-36TFor use with double chainsetWeight: 303gFor rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner allowing you to adapt to the type of surface ahead. The adjustable chain stabiliser prevents chain slapping and drops and gives you silent and uninterrupted shifting on rough terrain.
More products from Tweeks Cycles
Browse their full range on Yorkshire.com
Related Products
Browse all Bicycle Derailleurs
Hope 14T/12T Jockey Wheels
£41.99

SRAM GX 2x10 Speed Rear Derailleur
£59.99

Shimano Ultegra R8000 11-Speed Front Derailleur Double Braze-On
£46.99

Shimano Deore XT RD-M8120 12 speed Shadow+ SGS Rear Derailleur Black
£99.99

Sram XX1 11 Speed Rear Derailleur Black
£139.99

Shimano RD-M8100 XT 12 Speed Rear Derailleur Shadow+ GS Single Black
£104.49
From£55.24Tweeks Cycles
Buy Now