The T21 center pulley, model number 3RAC-3PY/21, is designed to enhance drivetrain consistency and longevity for many 1/10 scale RC cars. Manufactured in aluminum, it aims to offer a dependable balance of strength and reduced weight for hobbyists seeking a straightforward upgrade.
Aluminum provides a solid strength-to-weight ratio and improved wear resistance compared with typical plastic pulleys, helping to preserve drivetrain components over time.
The pulley is compatible with a range of 1/10 scale setups; verify shaft and mounting dimensions before installation. Fitting usually requires standard hand tools and basic alignment checks.