julio 27, 2026
Designed to fit the QS138 V3 motor shaft. This is a 12 Tooth 520 pitch sprocket made specifically for the QS Motor 3000W 138 70H Mid Drive Motor. Standard 17mm x 14mm pit bike sprocket spline.
julio 27, 2026
This is a 13 Tooth 520 pitch sprocket made specifically for the QS Motor 3000W 138 70H Mid Drive Motor. It is made from extra hard steel and has extra wide spline engagement to handle high torque applications. Designed to fit the QS138 V3 motor shaft. Standard 17mm x 14mm pit bike sprocket spline. Precision machined from extra hard gear steel. Includes sprocket, retainer ring, and M6 retainer ring screws.
julio 27, 2026
Designed to fit the QS138 V3 motor shaft. This is a 14 Tooth 520 pitch sprocket made specifically for the QS Motor 3000W 138 70H Mid Drive Motor. Standard 17mm x 14mm pit bike sprocket spline.