Belt for 50cc 4-Stroke 139QMB Scooters (Short Case)

Standard OEM Belt for 50cc 4-Stroke 139QMB Chinese Honda Cloned Scooters (Short Case)

SPECIFICATIONS:

• Length: 669mm
• Top Width: 18mm
• Groove Angle: 30°

Most belts are measured by circumference – width – angle of cut.Example: A 669-18-30 Belt is 669mm in circumference – 18mm in width and is cut at a 30 degree angle.

Also nearly all Chinese 50cc scooters use 669-18-30 belts for short cases and 729 belt for long cases.

This is not 100% guaranteed so if you are in doubt take off the cover and measure the belt before you replace it. When you find that a belt fits a scooter not listed here, please use the review feature to mention it.