SunRace M900 Rear Derailleur - 9-Speed Medium Cage Black Shimano Rear

★★★★★ 4.8 121 reviews

$46.26
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Product details

Management number 210302895 Release Date 2026/04/02 List Price $18.50 Model Number 210302895
Category

Upgrade Your Mountain Biking with the SunRace M900 Rear Derailleur - 9-Speed, Medium Cage, Black Experience smooth, reliable shifting performance on rugged MTB trails with the SunRace M900 Rear Derailleur. Engineered for 9-speed mountain bike drivetrains, this high-performance derailleur combines advanced materials, innovative technology, and durable design to enhance your off-road adventures. Materials & Construction: Built for durability and lightweight performance, the SunRace M900 features an alloy alloy outer link and outer cage, along with an alloy bracket, ensuring robustness without adding unnecessary weight. Weighing just 259g, this derailleur offers an optimal balance of strength and agility, perfect for aggressive trail riding and long endurance rides. Performance & Engineering: Designed for precise gear shifts and consistent chain management, the M900's adjustable chain stabilizer helps maintain optimal tension during jumps, climbs, and descents. Its medium cage (long mount) accommodates large cogs up to 51 teeth, providing excellent gear range flexibility for steep climbs and fast descents. The derailleur's ratio of 2:1 ensures smooth, responsive shifting across your gear spectrum. Components & Technology: Compatible with Mountain 9-speed shifters and rear direct mount systems, the SunRace M900 offers seamless integration into your existing MTB setup. Its robust construction and optimized pulley system deliver low-friction performance, minimizing drivetrain wear and maximizing efficiency on the trail. Style & Use Case: Featuring a sleek black finish, the SunRace M900 not only performs at a high level but also adds a touch of understated style to your bike. Its versatile, durable design makes it ideal for cross-country, trail, and enduro riders who demand dependable shifting in challenging terrains. Innovative Features: The adjustable chain stabilizer enhances chain retention, reducing the risk of drops during aggressive riding. Its all-

  • High-performance 9-speed MTB rear derailleur engineered with lightweight aluminum alloy components for enhanced durability and corrosion resistance.
  • Features an adjustable chain stabilizer to ensure smooth shifting and reduced chain slap on rugged trail terrain.
  • Designed with a medium cage length and a max sprocket size of 51 teeth, providing optimal gear range and compatibility with modern mountain bike setups.
  • Built with Mountain compatibility and Rear Direct Mount for easy installation and precise shifting performance.
  • Sleek black finish and rugged construction make the SunRace M900 Rear Derailleur a stylish and reliable choice for aggressive trail riding and all-mountain adventures.
Color Black
Brand Name SunRace
Mount Type Direct Mount
Unit Count 1.0 Count
Item Weight 272 Grams
Manufacturer SunRace
Model Number RDM900 MD-BOX
Material Type Multi
Number of Teeth 51
Case Material Type Aluminum Alloy
Included Components Rear Derailleur
Warranty Description Limited Warranty
Manufacturer Part Number RDM900 MD-BOX
Item Dimensions L x W x H 10"L x 8"W x 2"H
Global Trade Identification Number 04710944268430

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4.8 out of 5
★★★★★
121 ratings | 50 reviews
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