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Scoot F.A.Q.


Q. What size of roller weights do I need?

The table below shows common roller weight sizes for some popular scooters/engine styles. It is always a good idea to measure your rollers before ordering to be certain that you get what you need. There quite a few oddball engines out there in Chinese scooters that may not conform to anticipated specifications. The first number is the diameter in mm and the second in the width in mm. If you have an aftermarket variator, it may use weights of a different size.

139QMB/GY6 50cc 4T
16x13mm
QJ139QMB-3 50cc 4T (Minarelli Style CVT)
15x12mm
1E40QMB/Minarelli Clone 2T
15x12mm
Yamaha Minarelli (Zuma/BWS/Aerox/Jog 50 2T)
15x12mm
TGB / Franco Morini 2T
17x12mm
GY6 125-150cc 4T
18x14mm
GY6-B 150cc 4T (Usually Has 16" Wheels)
20x15mm
Linhai VOG 250-300cc 4T
20x12mm
CF250 4T
23x18mm


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