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Shimano GRX RD-RX400 10-Speed Rear Derailleur

IRDRX400
₹5,010

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Reliable Shifting for Mixed-Terrain Adventures

Overview

The Shimano GRX RD-RX400 rear derailleur is designed for 10-speed drivetrains, delivering reliable and precise shifting across mixed terrains. Its integrated chain stabilizer mechanism ensures consistent performance, even on rough trails or gravel paths.

Quieter Rides on Any Surface: Engineered with an innovative chain tensioner, this derailleur reduces chain slap and noise, offering a quieter and more enjoyable ride. The On/Off switch allows you to control the stabilizer function, adapting to both smooth roads and rugged trails with ease.

Durable Construction for Adventure: Built for gravel and mixed-terrain adventures, the RD-RX400 features a robust design to withstand challenging conditions. Its durable construction ensures long-lasting performance, no matter where your rides take you.

Smooth and Efficient Shifting: With Shimano's trusted precision engineering, the GRX derailleur provides smooth and reliable shifts, helping you maintain cadence and momentum during climbs, descents, or rapid terrain changes.

The RD-RX400 is compatible with a wide gear range, making it ideal for riders looking to tackle diverse terrains. Whether on gravel roads, trails, or urban streets, this derailleur is a dependable choice for any 10-speed setup.

Features

  • Smooth Shifting on Any Terrain: Ensures silent and reliable rear shifting, even on rough surfaces, for uninterrupted performance.
  • Chain Stabilization: Adjustable chain stabilizer prevents chain slap and drops, with an On/Off switch to adapt to varying terrains.
  • Wide Compatibility: Supports 10-speed road Dual Control Levers and wide-range front gearing for versatile setups.
  • Gravel-Tuned Design: Features a gravel-specific clutch tension for better chain control on mixed surfaces.
  • Optimized Gear Range: Handles a maximum front difference of 16T, top sprocket max. 11T, low sprocket max. 36T, and a total capacity of 41T.

Technology

  • Shimano Shadow RD+: Reduces chain slap and noise for a quieter and distraction-free ride. The derailleur stabilizer minimizes chain drops while being lighter and more efficient than roller-type chain devices.

Specifications

  • Model No: RD-RX400
  • Series: GRX
  • Color: Series Color
  • Rear Speeds: 10
  • Compatible Chain: HG-X 10-speed
  • RD Construction|Shimano Shadow RD+: Yes
  • Mount|Direct Attachment (Conventional): Yes
  • Mount|Direct Mount: Yes
  • Cable Adjuster: Yes
  • Max. Front Difference: 16T
  • Total Capacity: 41T
  • Low Sprocket|Max.: 36T
  • Low Sprocket|Min.: 32T
  • Top Sprocket|Max.: 11T
  • Top Sprocket|Min.: 11T
  • Fluoric Coated Link Bushings: 4
  • Pulley|Teeth: 11T
  • Sunken Type Pulley Screw: Yes
  • B-Axle|Hollow Axle: Yes
  • Average Weight: 303 g

Shipping, Returns & Refunds

We ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.