![Amazon.com : ZUKKA Shimano Rear Derailleur RD-TY21B 6/7 Speed Direct Mount for MTB Mountain Bike : Sports & Outdoors Amazon.com : ZUKKA Shimano Rear Derailleur RD-TY21B 6/7 Speed Direct Mount for MTB Mountain Bike : Sports & Outdoors](https://m.media-amazon.com/images/I/61kt7i5mkdL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : ZUKKA Shimano Rear Derailleur RD-TY21B 6/7 Speed Direct Mount for MTB Mountain Bike : Sports & Outdoors
![CHICIRIS Derailleur Gear,Mountain Bike Rear Wheel Derailleur Gear for 21 24 Speed Bikes Replacement Accessory, Folding Bike Derailleur - Walmart.com CHICIRIS Derailleur Gear,Mountain Bike Rear Wheel Derailleur Gear for 21 24 Speed Bikes Replacement Accessory, Folding Bike Derailleur - Walmart.com](https://i5.walmartimages.com/seo/CHICIRIS-Derailleur-Gear-Mountain-Bike-Rear-Wheel-Derailleur-Gear-for-21-24-Speed-Bikes-Replacement-Accessory-Folding-Bike-Derailleur_cedc59e2-4fc0-4484-8439-bb35c476c4dd.afa760af33f738d8f127e6ae1c71309f.jpeg)
CHICIRIS Derailleur Gear,Mountain Bike Rear Wheel Derailleur Gear for 21 24 Speed Bikes Replacement Accessory, Folding Bike Derailleur - Walmart.com
![Amazon.com : MEGHNA Shimano Rear Derailleur 6/7 Speed RD-TZ31-A-GS Hanger Mount for Mountain Bike BMX : Sports & Outdoors Amazon.com : MEGHNA Shimano Rear Derailleur 6/7 Speed RD-TZ31-A-GS Hanger Mount for Mountain Bike BMX : Sports & Outdoors](https://m.media-amazon.com/images/I/71BAgoEhmTL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : MEGHNA Shimano Rear Derailleur 6/7 Speed RD-TZ31-A-GS Hanger Mount for Mountain Bike BMX : Sports & Outdoors
![Troubleshooting Common Rear Derailleur Shifting Problems on a Bike - Singletracks Mountain Bike News Troubleshooting Common Rear Derailleur Shifting Problems on a Bike - Singletracks Mountain Bike News](https://images.singletracks.com/blog/wp-content/uploads/2018/11/complete-DT-1170x780.jpg)