Category: Bicycle components and accessories. Product Review: Shimano is a well-known brand that produces high-quality bicycle components and accessories. In this review, we will take a closer look at some of their most popular rear derailleurs for road bikes. 1. SHIMANO Dura-Ace Di2 RD-R9150 11-Speed Rear Derailleur: This is one of the latest models from Shimano and it offers a wide range of features that make it stand out from other rear derailleurs in its class. The Di2 technology used in this model allows for precise shifting, even under heavy load, and it also has an integrated brake caliper that provides excellent stopping power. Additionally, the RD-R9150 is compatible with both Shimano and SRAM shifters, making it a versatile option for riders who want to use different types of shifters on their bikes. 2. SHIMANO Dura-Ace RD-R9100 11-Speed Rear Derailleur: This model is similar to the Di2 version, but it uses mechanical shifting instead of electronic shifting. It still offers a wide range of features that make it stand out from other rear derailleurs in its class, including a long cage design that allows for larger cassettes and easier gear selection. Additionally, this model has an integrated brake caliper that provides excellent stopping power. 3. SHIMANO Dura-Ace 9150 Di2 Front Derailleur - Braze On: This front derailleur is designed to work with the RD-R9150 rear derailleur and it offers a wide range of features that make it stand out from other front derailleurs in its class. The braze-on design allows for easy installation, while the Di2 technology used in this model provides precise shifting even under heavy load. Additionally, this model has an integrated brake caliper that provides excellent stopping power. 4. SHIMANO Ultegra R8000 Mid-Cage Rear Derailleur: This rear derailleur is designed for use with Shimano shifters and it offers a wide range of features that make it stand out from other rear derailleurs in its class. The mid-cage design allows for larger cassettes and easier gear selection, while the Di2 technology used in this model provides precise shifting even under heavy load. Additionally, this model has an integrated brake caliper that provides excellent stopping power. 5. SHIMANO RD-9070 Dura Ace Di2 Rear Derailleur: This rear derailleur is designed for use with Shimano shifters and it offers a wide range of features that make it stand out from other rear derailleurs in its class. The Di2 technology used in this model provides precise shifting even under heavy load, while the long cage design allows for larger cassettes and easier gear selection. Additionally, this model has an integrated brake caliper that provides excellent stopping power. 6. SHIMANO Dura-Ace Di2 ST-R9150 11-Speed Shifters: These shifters are designed to work with the RD-R9150 rear derailleur and they offer a wide range of features that make them stand out from other shifters in their class. The Di2 technology used in this model provides precise shifting even under heavy load, while the ergonomic design allows for comfortable use during long rides. Additionally, these shifters have an integrated brake caliper that provides excellent stopping power. 7. Dura-Ace Shimano Di2 ST-9070 Shift Lever Set: This shift lever set is designed to work with the RD-9070 rear derailleur and it offers a wide range of features that make it stand out from other shift lever sets in its class. The Di2 technology used in this model provides precise shifting even under heavy load, while the ergonomic design allows for comfortable use during long rides. Additionally, these shifters have an integrated brake caliper that provides excellent stopping power. 8. SHIMANO Ultegra Di2 R8050 Mid-Cage Rear Derailleur: This rear derailleur is designed for use with Shimano shifters and it offers a wide range of features that make it stand out from other rear derailleurs in its class. The mid-cage design allows for larger cassettes and easier gear selection, while the Di2 technology used in this model provides precise shifting even under heavy load. Additionally, this model has an integrated brake caliper that provides excellent stopping power. 9. Ultegra Shimano Rear Derailleur RD-6800 (2014): This rear derailleur is designed for use with Shimano shifters and it offers a wide range of features that make it stand out from other rear derailleurs in its class. The long cage design allows for larger cassettes and easier gear selection, while the mechanical shifting provides precise and reliable performance. Additionally, this model has an integrated brake caliper that provides excellent stopping power. 10. KCNC Road Cyclocross Bicycle Bike Rear Derailleur Oversized Pulley Wheel System Cage OSPW for Shimano Dura-Ace/Ultegra 6700/6770/6800/6870/7900/7970/9000/9070 use in Black/Red/Gold Pulley Colors: This rear derailleur is designed for use with Shimano and SRAM shifters and it offers a wide range of features that make it stand out from other rear derailleurs in its class. The oversized pulley wheel system provides excellent gear selection, while the Di2 technology used in this model provides precise shifting even under heavy load. Additionally, this model has an integrated brake caliper that provides excellent stopping power. In conclusion, Shimano is a brand that produces high-quality bicycle components and accessories that are designed to meet the needs of riders who demand reliable performance and durability. The rear derailleurs reviewed in this article offer a wide range of features that make them stand out from other rear derailleurs in their class, including precise shifting, easy gear selection, and excellent stopping power.