Shimano GRX RD-RX400 10-Speed Rear Derailleur

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.

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.