{"product_id":"rrdr0551","title":"Sunrace RD-MS300 11-Speed Rear Derailleur with Alloy Links, Chain Stabilizer, Fits 1x Drivetrains up to 51t Cassette, Mid Cage, Lightweight, Durable","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your mountain, trail, or gravel bike with the Sunrace RD-MS300 Rear Derailleur - the perfect choice for 11-speed mid-cage performance. Engineered for durability and precision, this high-performance derailleur features innovative technology designed to optimize shifting efficiency and reliability across diverse riding conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Construction:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eBuilt with lightweight yet sturdy alloy links, the Sunrace RD-MS300 ensures durability without adding unnecessary weight. Its robust construction withstands the rigors of off-road riding, providing long-lasting performance mile after mile.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eDesigned for seamless 11-speed shifting, the MS300 boasts a compact mid-cage design suitable for a wide range of drivetrain setups. With an integrated chain stabilizer, it minimizes chain slap and dropout, delivering smooth, accurate gear changes even on rough terrain. Its 2:1 gear ratio enhances shifting consistency, making it ideal for aggressive trail riding and demanding MTB adventures.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eComponents \u0026amp; Technology:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eUtilizing precision engineering, the RD-MS300 is compatible with up to 51-tooth cassettes, offering a broad gear range for tackling steep climbs and fast descents. Its compatibility with 1x drivetrains makes it a versatile upgrade for modern, minimalist setups.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eDesigned for outdoor enthusiasts and mountain bikers seeking reliable performance, the Sunrace RD-MS300 merges sleek styling with rugged durability. Its mid-cage design suits aggressive trail riders and adventurers looking for a dependable component that enhances shifting precision across various terrains.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Integrated chain stabilizer for enhanced chain retention and smoother shifts\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Compatible with large cassette sizes up to 51 teeth for versatile gearing options\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Lightweight alloy links reduce weight while maintaining strength\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- 11-speed compatibility for modern drivetrain setups\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003eSpecifications:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Model: MS300\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Cage\/Mount: Mid\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003e- Max Cassette Size: 51T\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e- Gear Ratio: 2:1\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003e- Weight: 347g\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-21\"\u003e\u003cp\u003eOptimize your bike's performance with the Sunrace RD-MS300 Rear Derailleur - trusted technology for confident, reliable shifting on every ride. Elevate your cycling experience with this durable, high-quality component built for serious riders.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-performance 11-speed rear derailleur with integrated chain stabilizer for smooth and reliable shifting under demanding conditions. \u003c\/li\u003e\n\u003cli\u003eConstructed with durable alloy links for enhanced strength, corrosion resistance, and lightweight performance, making it ideal for aggressive trail riding or competitive cycling. \u003c\/li\u003e\n\u003cli\u003eCompatible with 1x drivetrain setups, supporting up to 51T cassettes for wide gear range customization, perfect for mountain biking and gravel rides. \u003c\/li\u003e\n\u003cli\u003eDesigned with a mid cage and 2:1 ratio, ensuring precise gear transitions, improved chain retention, and compatibility with modern 11-speed systems. \u003c\/li\u003e\n\u003cli\u003eSleek, durable style combined with advanced engineering allows this derailleur to handle high torque applications while maintaining a low weight of only 347 grams-ideal for serious cyclists seeking performance and reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Sunrace","offers":[{"title":"Default Title","offer_id":43025527668803,"sku":"RRDR0551","price":54.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/250712_e0da459a-74a4-492e-b7a7-995323c98fe7.jpg?v=1773542741","url":"https:\/\/365cycles.com\/products\/rrdr0551","provider":"365 Cycles","version":"1.0","type":"link"}