Starter Idler - Reduction Gear Assembly - 50cc 70cc 90cc 2-Stroke 100699 Black & Chrome

Black & Chrome

It is the most common belt used on short case GY6 50cc 139QMB scooters

Replaces Polaris 3211069

The "A" engine has 54mm spacing

Starter Idler - Reduction Gear Assembly - 50cc 70cc 90cc 2-Stroke 100699 Black & Chrome50cc 90cc 110cc 2 Stroke Start Idle Gear Assembly This is a 20 47 idler gear assembly used on 50cc, 70cc, 90cc, 100cc and 110cc 2 stroke Yamaha Minarelli engines found on many scooters and atvs. There are two different gears a 18 65 tooth count and a 20 47 tooth count. This is the 20 47. Please double check your gear before ordering. Gear Description: HK0810 needle bearing Bearing ID: 8mm Large gear tooth count: 47 teeth Large gear OD: 40mm (1. 57 in)