The SunRace M3 Rear Derailleur is designed for 7-speed MTB drivetrains. Indexed adjuster Item Specifications LargestCog 30 Color Black RearDer_ShifterCompatibility Shimano Mountain RearDerailleurMountType Shimano Rear Direct Mount DrivetrainSpeeds 7 Weight 230 ChainWrapCapacityteeth 37 CageLength Long
The SunRace M3 Rear Derailleur is designed for 7-speed MTB drivetrains. Indexed adjuster Item Specifications LargestCog 30 Color Black RearDer_ShifterCompatibility Shimano Mountain RearDerailleurMountType Shimano Rear Direct Mount DrivetrainSpeeds 7 Weight 230 ChainWrapCapacityteeth 37 CageLength Long
in 7 offers
The lowest price for Sunrace RDM37 MTB Bicycle 7 Speed Rear Derailleur right now is , compared across 7 retailers.
Sunrace RDM37 MTB Bicycle 7 Speed Rear Derailleur
The SunRace M3 Rear Derailleur is designed for 7-speed MTB drivetrains. Indexed adjuster Item Specifications LargestCog 30 Color Black RearDer_ShifterCompatibility Shimano Mountain RearDerailleurMountType Shimano Rear Direct Mount DrivetrainSpeeds 7 Weight 230 ChainWrapCapacityteeth 37 CageLength Long
The SunRace M3 Rear Derailleur is designed for 7-speed MTB drivetrains. Indexed adjuster Item Specifications LargestCog 30 Color Black RearDer_ShifterCompatibility Shimano Mountain RearDerailleurMountType Shimano Rear Direct Mount DrivetrainSpeeds 7 Weight 230 ChainWrapCapacityteeth 37 CageLength Long
The all-time low was $13.49 on 20 Sept 2024 — today's price is 122% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 3 Oct 2026.
Last updated at 03/10/2026 02:31:17
Sunrace Rear Derailleur RDM37 13 30T 7 Speed
Delivery between 9–13 Oct $14.95
Sunrace Rdm37 Mtb Bicycle 7 Speed Rear Derailleur
Free delivery between Wed – Thu
Sunrace Rdm37 Mtb Bicycle 7 Speed Rear Derailleur
Delivery between 6–14 Oct $10
Sunrace Rdm37 Mtb Bicycle 7 Speed Rear Derailleur
Delivery $10
Sunrace RDM 7 Speed Rear Derailleur
Delivery between 8–12 Oct $9.95
Sunrace RDM 7 Speed Rear Derailleur
Delivery $9.95
RD-M37 Rear Derailleur | rear-bike-derailleurs
Delivery between 10–13 Oct $29
originally posted on ebay.com
Plastic derailleur is a bad idea, it snapped in two (see photos).
originally posted on ebay.com
Easy to fit and lightweight. Works a charm, cant believe how well it works for the price. The original Shimano was hard to adjust and had terrible gear changes and cost 5 time the cost of the Sunrace Great Product.
| Cage type | long |
| Derailleur material | engineering polymers |
| Inner link material | steel |
| Capacity | 13 - 30T |
Sunrace Rear Derailleur RDM37 13 30T 7 Speed
Delivery between 9–13 Oct $14.95
Sunrace Rdm37 Mtb Bicycle 7 Speed Rear Derailleur
Free delivery between Wed – Thu
Sunrace Rdm37 Mtb Bicycle 7 Speed Rear Derailleur
Delivery between 6–14 Oct $10
Sunrace Rdm37 Mtb Bicycle 7 Speed Rear Derailleur
Delivery $10
Sunrace RDM 7 Speed Rear Derailleur
Delivery between 8–12 Oct $9.95
Plastic derailleur is a bad idea, it snapped in two (see photos).
Easy to fit and lightweight. Works a charm, cant believe how well it works for the price. The original Shimano was hard to adjust and had terrible gear changes and cost 5 time the cost of the Sunrace Great Product.
| Cage type | long |
| Derailleur material | engineering polymers |
| Inner link material | steel |
| Capacity | 13 - 30T |
