Shimano GRX RX400 Rear Derailleur
Best gravel derailleur for riders seeking reliable, quiet shifting on rough terrain.
This component brings essential stability to gravel riding by incorporating a clutch mechanism that keeps the chain secure over rough terrain. It is a reliable, no-nonsense upgrade for riders looking to quiet their drivetrain and improve shifting consistency on mixed surfaces.
$60.99
at
Grey Ghost Bicycles
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Shimano GRX Di2 Rear Derailleur
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Who it's for
- Gravel riders tackling rough, bumpy terrain
- Cyclists prioritizing long-term component reliability
- Budget-conscious riders building a capable gravel bike
Who should skip it
- Riders needing tighter gear spacing or wider range
- Climbers requiring easier gears for steep, technical ascents
- Weight-weenies chasing the lightest possible bike build
Performance breakdown
Chain Stability
Integrated clutch mechanism effectively eliminates chain slap on rough gravel descents.
Shifting Precision
Crisp, reliable gear changes even under heavy load and muddy conditions.
Terrain Versatility
On-off clutch switch allows seamless transitions between road and trail riding.
Drivetrain Compatibility
Pairs perfectly with standard 10-speed road levers and wide-range gearing.
Build Durability
Rugged construction designed to withstand the abuse of off-road gravel riding.
Gear Range
Handles up to 36-tooth cassettes for tackling steep, loose gravel climbs.
Key Specs
name
10-speed
name
Long Cage
name
Black
name
16T
name
Max. 36T/Min. 30T
name
Max. 11T/Min. 11T
name
41T
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