SunRace RD-MS300 11 Speed Black Rear derailleur

★★★★★ 4.6 36 reviews

$53.96
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Management number 214614862 Release Date 2026/04/12 List Price $21.58 Model Number 214614862
Category

Upgrade Your Mountain and Gravel Riding with the Sunrace RD-MS300 11-Speed Rear Derailleur The Sunrace RD-MS300 Rear Derailleur is a high-performance, durable component designed for serious cyclists seeking reliable shifting under demanding conditions. Engineered with precision and versatility in mind, this 11-speed derailleur offers seamless gear transitions, enhanced stability, and compatibility with modern drivetrain setups. Materials & Construction Constructed with lightweight yet robust alloy links, the Sunrace RD-MS300 ensures durability without adding unnecessary weight, weighing only 347 grams. Its sturdy alloy cage provides excellent resistance to impacts and wear, making it ideal for off-road adventures, gravel riding, and urban commuting. Performance & Engineering Powered by advanced engineering, the RD-MS300 features an integrated chain stabilizer that minimizes chain slap and dropout, ensuring smooth, precise shifts across the entire cassette range. With a maximum sprocket size of 51 teeth, this derailleur is perfect for handling wide gear ranges commonly found in 1x drivetrain configurations. Its 2-to-1 ratio system ensures reliable chain engagement, promoting efficient power transfer and reduced derailleur noise. Components & Technology Equipped with components, the Sunrace RD-MS300 leverages innovative design features like a mid cage mount to optimize clearance and compatibility across various bike frames. Its seamless integration with 11-speed cassettes allows for smooth shifting performance, making it suitable for mountain biking, gravel grinding, and cyclocross. Style & Use Case Designed for versatility, the Sunrace RD-MS300 is perfect for riders seeking a durable and efficient rear derailleur suitable for trail riding, gravel riding, and everyday commuting. Its sleek black finish complements a wide range of bike aesthetics, while its engineering ensures dependable performance in diverse riding conditions. Key Features: - Compatible

  • Lightweight and durable alloy construction reduces overall weight to just 347 grams, enhancing bike agility and performance.
  • Designed for 11-speed mid-cage setups, this derailleur is compatible with modern 1x drivetrain systems supporting up to 51-tooth cassettes for versatile riding options.
  • Incorporates innovative chain stabilizer technology to improve chain retention, reduce chain slap, and enhance shifting precision on rough terrain.
  • Optimized for performance with a 2:1 ratio and precise engineering to deliver smooth, reliable gear changes, even under high torque and demanding conditions.
  • Stylish black finish and sleek mid-cage design make this rear derailleur a perfect upgrade for mountain biking, gravel riding, or XC bikes aiming for top-tier reliability and style.
Color BLK
Brand Name SunRace
Mount Type Clamp-On Mount
Unit Count 1.0 Count
Item Weight 1.06 Pounds
Manufacturer Sunrace
Model Number MS300
Material Type Metal
Number of Teeth 6
Case Material Type Alloy
Included Components Rear Derailleur
Warranty Description Limited Warranty
Manufacturer Part Number SunRace-RRDR0308
Item Dimensions L x W x H 9"L x 6"W x 3"H

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4.6 out of 5
★★★★★
36 ratings | 15 reviews
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