Manually adjust the tension on your chains and belts with these tools, also known as chain and belt tighteners. They attach to an idler sprocket or pulley with a tightener shaft. Tensioners help prevent belts and chains from slipping and breaking due to improper tension, extending the life of your belts and chains and avoiding damage to the drive system's components.
Adjustable tensioners have a shaft holder that can be set at an angle to maintain proper tension on belts and chains.
These tightener shafts are hardened and ground for maximum life, and must be used with compatible idlers and drive tightener.