The Tern Chainring GSD G1 20T Black (SKU: BKTNP371) is the official factory replacement sprocket specifically engineered for the front drivetrain of the Tern GSD Gen 1 (G1) cargo e-bikes.
- Tooth Count: 20T.
- Finish: Hard-wearing black anodised coating to handle high-torque cargo hauling.
- Compatibility: Designed exclusively for the Tern GSD S10 Gen 1 equipped with Bosch motor systems that utilize a small front drive sprocket.
Note: If you are experiencing slipping or skipping, it is highly recommended to use a chain checker tool or replace your chain simultaneously, as a worn chain will rapidly accelerate wear on a brand-new chainring
