Model 835 20 30 is usually used for GY6 150cc (general scooter 150, this is it). Model 842 20 30 is usually used for GY6 150cc (generally 150 scooters, this is it). 835 and 842 are commonly used in GY6 150cc.
1PZ 669-18-30 Premium CVT Drive Belt for 50cc 49cc GY6 Scooter
Motorbike Belt Drive Scooter Drive Belt 669 729 799
External Testing Certification: CCC With excellent fit and durability, high-performance belts can provide maximum power transmission. Designed for
Motorcycle Drive Belt Motorcycle Scooter Drive Belt 669 729 799 743 788 835 842 For GY6 50cc 150cc 139qmb 1p39qmb 147qmd 152qmi 157amj Minarelli JOG
Scooter Motorcycle Drive Belt 669 729 799 743 788 835 842 for GY6
Glixal ATKS-033 729-17.7-30 Reinforced Racing CVT
V-Belt CVT Drive Belt 743 20 30 / 842 20 30 fits GY6 125cc 150cc
Engine Drive Belt, Scooter Part Neoprene 6691830 Durable Black For
1pc 150cc Scooter Drive Belt Engines Belt For Scooter Gy6 Car