Product Features

Description
The mechanical Shimano GRX RD-RX400 rear derailleur is characterized by quiet, smooth, precise and reliable shifting, even on the most difficult terrain. This is mainly due to the Shadow RD + chain stabilization system, which prevents the chain from hitting and falling off, as well as unnecessary movements of the derailleur cage, thus ensuring uninterrupted shifting performance. For this reason, like Shimano's mountain bike derailleurs, an On / Off switch can be found next to the upper pulley. When activated, the rear derailleur pivot is held firmly in place to reduce excessive movement, noise and general "chain shake". The 10-speed rear derailleur accommodates 11-32 cassettes, 11-36 cassettes.
 
Features:
 
Series: GRX RX400
Application: Gravel, Cyclocross, City & Touring
Gear: 10 gears
Mounting: standard (Direct Mount compatible)
Capacity: 41 teeth
Compatibility: Shimano Road 10-speed
Compatibility – Chains: HG-X 10-speed
 
Technical Specifications:
 
Derailleur Pulleys: 11 teeth
Outer Cage Material: steel
Inner Cage Material: steel
Other Materials: stainless steel, steel, aluminum, composite (GFRP)
 
Compatibility:
 
– 2×10-speed Dual Control shift/brake levers for ST-4700, ST-4720, ST-4725, ST-RS405, ST-RX400 and SL-4700
– 10-speed Road cassettes as well as CS-M980, CS-M771- 10, CS-HG81-10, CS-HG62-10, CS-HG50-10 32 to 36 t
– With the largest sprocket among 10 gears
 
Features:
 
– Adjustable chain stabilization prevents chain hits and falls
– Stabilizer with on/off switch to adapt to the terrain
– Gravel specific stress
– Smooth and reliable gear shifting on mixed terrain
– Painted cage plates
– 4 connection bushes, fluorine coated
 
Technology:
 
Shadow RD+: Prevents the chain from falling off and also prevents unnecessary movements of the derailleur cage, thus providing uninterrupted shifting performance. In addition to quieter chain transmission, the balancing feature reduces chain vibration. It is a simple solution to prevent the chain from falling off. This feature provides lighter and more efficient operation.
 
Models:
 
short:
– Largest Gear Teeth (max): 36 teeth
– Largest Gear Teeth (min.): 32 teeth
– Smallest Gear Teeth (max): 11 teeth
– Smallest Gear Teeth (min.): 11 teeth
– Chainwheel Difference (max.): 16 teeth
– Total Capacity: 41 teeth
– Manufacturer Part Number: I-RDRX400

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Frequently Asked Questions

📌 When will my order be shipped?

Your orders are shipped within 1-2 business days. This period may vary during promotional times due to volume.

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📌 When will I receive a refund for my returned product?

Once your return is approved, the payment will be refunded within 3-7 business days according to your payment method.

📌 Do your products have a warranty?

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