Category Review: Bicycle components and accessories Bicycles are a popular mode of transportation for many people around the world. Whether you're an avid cyclist or just starting out on your journey, having high-quality bicycle components can make all the difference in your riding experience. In this review, we will take a closer look at some of the best rear derailleurs available on the market today and discuss their features, benefits, and drawbacks. 1. SHIMANO Ultegra RD-RX800 Rear Derailleur: The SHIMANO Ultegra RD-RX800 is a high-end rear derailleur that offers smooth shifting and durability. It features 11 speeds, which allows for more precise gear selection and better control on steep hills or technical trails. The Ultegra RD-RX800 also has a long cage design, which makes it compatible with larger chainrings and cassettes. Overall, this rear derailleur is an excellent choice for serious cyclists who demand the best performance from their bicycle components. 2. SHIMANO XT RD-M8000 Rear Derailleur: The SHIMANO XT RD-M8000 is a top-of-the-line rear derailleur that is designed for off-road cycling. It features 11 speeds and has a long cage design, which makes it compatible with larger chainrings and cassettes. The XT RD-M8000 also has a wide range of gears, which allows riders to tackle steep hills or technical trails with ease. Additionally, this rear derailleur is built for durability and can handle the rigors of off-road cycling without breaking down. 3. SRAM GX Bicycle Rear Derailleur with 1 x 11 Speed Long Cage: The SRAM GX Bicycle Rear Derailleur with 1 x 11 Speed Long Cage is a versatile rear derailleur that can be used on both mountain and road bikes. It features 11 speeds, which allows for more precise gear selection and better control on steep hills or technical trails. The GX Bicycle Rear Derailleur also has a long cage design, which makes it compatible with larger chainrings and cassettes. Overall, this rear derailleur is an excellent choice for cyclists who want the best of both worlds in terms of performance and versatility. 4. SRAM X-Sync 40T 11 Speed 110 Alum BB30 or GXP Chain Ring: The SRAM X-Sync 40T 11 Speed 110 Alum BB30 or GXP Chain Ring is a high-performance chain ring that is designed to work with the latest generation of rear derailleurs. It features a 40-tooth tooth count, which allows for more precise gear selection and better control on steep hills or technical trails. The X-Sync 40T also has an aluminum construction, which makes it lightweight and durable. Overall, this chain ring is an excellent choice for serious cyclists who demand the best performance from their bicycle components. 5. SHIMANO GRX RD-RX810 Rear Derailleur: The SHIMANO GRX RD-RX810 is a high-end rear derailleur that offers smooth shifting and durability. It features 11 speeds, which allows for more precise gear selection and better control on steep hills or technical trails. The GRX RD-RX810 also has a long cage design, which makes it compatible with larger chainrings and cassettes. Overall, this rear derailleur is an excellent choice for cyclists who want the best of both worlds in terms of performance and versatility. 6. SHIMANO RD-M640 Zee Shadow Plus 10 Speed Rear Derailleur: The SHIMANO RD-M640 Zee Shadow Plus is a high-performance rear derailleur that offers smooth shifting and durability. It features 10 speeds, which allows for more precise gear selection and better control on steep hills or technical trails. The RD-M640 Zee Shadow Plus also has a long cage design, which makes it compatible with larger chainrings and cassettes. Overall, this rear derailleur is an excellent choice for cyclists who want the best of both worlds in terms of performance and versatility. 7. KCNC Road Cyclocross Gravel Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050: The KCNC Road Cyclocross Gravel Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace R9100/R9150 Ultegra R8000/R8050 is a high-performance rear derailleur that offers smooth shifting and durability. It features an oversized pulley wheel system, which allows for more precise gear selection and better control on steep hills or technical trails. The KCNC Road Cyclocross Gravel Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW is also compatible with a wide range of chainrings and cassettes, making it an excellent choice for cyclists who want the best of both worlds in terms of performance and versatility. 8. SHIMANO GRX RD-RX812 Rear Derailleur: The SHIMANO GRX RD-RX812 is a high-end rear derailleur that offers smooth shifting and durability. It features 11 speeds, which allows for more precise gear selection and better control on steep hills or technical trails. The GRX RD-RX812 also has a long cage design, which makes it compatible with larger chainrings and cassettes. Overall, this rear derailleur is an excellent choice for cyclists who want the best of both worlds in terms of performance and versatility. 9. SRAM X01 Type 2.1 11 Speed Rear Derailleur: The SRAM X01 Type 2.1 is a high-performance rear derailleur that offers smooth shifting and durability. It features 11 speeds, which allows for more precise gear selection and better control on steep hills or technical trails. The X01 Type 2.1 also has a long cage design, which makes it compatible with larger chainrings and cassettes. Overall, this rear derailleur is an excellent choice for serious cyclists who demand the best performance from their bicycle components. 10. Wolf Tooth Components Tanpan Inline: 11-Speed Conversion: The Wolf Tooth Components Tanpan Inline: 11-Speed Conversion is a high-performance chainring that is designed to work with the latest generation of rear derailleurs. It features an 11-tooth tooth count, which allows for more precise gear selection and better control on steep hills or technical trails. The Tanpan Inline: 11-Speed Conversion also has a lightweight aluminum construction, which makes it durable and easy to install. Overall, this chainring is an excellent choice for cyclists who want the best of both worlds in terms of performance and versatility. In conclusion, rear derailleurs are an essential component of any bicycle that requires precise gear selection and better control on steep hills or technical trails. The products we have reviewed above offer a range of features, benefits, and drawbacks that make them suitable for different types of cyclists and riding styles.