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Shimano GRX RD-RX400 rear derailleur, 10-speed, super long cage (SGS), Shadow+

45.99 € savings
RRP 75.99 €
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From 27.01.2026 (Tuesday) Check availability
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By courier to your home Express courier delivery GLS Express courier delivery DPD
Delivery method on Wednesday 28.01.2026
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Delivery method on Wednesday 28.01.2026
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Extended return option up to 100 days More info
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Shimano GRX RD-RX400 derailleur

The derailleur from the RX400 set provides stable shifting performance, quiet and smooth operation even in difficult terrain. Shimano GRX stands out from the rest of the world of similar components thanks to its specific ergonomics, optimized gears, great reliability and quiet operation of the shifting system. This is not an elaborate set of road components. It represents a view of how cyclists want to explore their world.
Product features
Suitable for cassette gear combinations: 11-30 / 11-36 T
GRX represents the challenge to find new places and experiences that make us all strong
It is compatible with current Dual Control Lever road models
Adjustable chain stabilizer SHIMANO Shadow RD+
Product details
Groupset Shimano GRX
Gears 1x10, 2x10, 3x10
Control type mechanical
Weight 303 g
Max. cartridge range 11 - 36T
Min. cartridge range 11 - 32T
Designation gravel
Cage type SGS-Super long cage, Shadow RD+
Mounting type Direct mount
Range 41 teeth
Material Aluminium / Steel
product ID 87352
Product rating  (11 ratings)
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WARNING
For installation, adjustment, and replacement information that is not found in the user's manual, consult the place of purchase or a distributor. A dealer's manual for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to read this "user's manual" thoroughly before use, follow it for correct use, and save it so that you can refer back to it at any time.
The following instructions must always be followed in order to prevent personal injury and physical damage to equipment and the surroundings. The instructions are classified according to the degree of danger or damage that may occur if the product is used incorrectly.
DANGER - Failure to follow the instructions will result in death or serious injury.
WARNING - Failure to follow the instructions could result in death or serious injury.
CAUTION - Failure to follow the instructions could result in personal injury or physical damage to equipment and surroundings.

WARNING
- Do not disassemble or modify the product. This may cause the product to malfunction, you may fall unexpectedly and be seriously injured.
- Never use alkali or acid-based solvents such as rust removers. If a solvent is used, the chain may break and cause serious injury.
- Clean the chain regularly with a suitable chain cleaner. Maintenance intervals depend on the conditions of use and riding.
- Check that the chain is not damaged (deformation or cracking), does not skip or show any other abnormalities such as arbitrary shifting. If any problems occur, contact the place of purchase or a distributor. The chain may break and you may fall.

Shimano
Road Shimano
Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.
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