Dr Pulley High Performance Clutch and Bell GY6 139QMB
BELL IS INCLUDED Best clutch upgrade out there adds take off and top end with great results can not say enough about this set up.
Your clutch and clutch bell are over looked by must but wear down plus stock is not where the performance you get from a Dr Pulley clutch. You should include bell because your stock bell after so long becomes worn down from heat and performance would not be without bell.
Scootertronics recently made this discovery by testing various clutches on the 139QMB engines that are in our 49cc scooters we sell by Meitian, having been thrilled with the results actually shocked with the results of the performance we got from these we suggest as a top upgrade.
The Dr Pulley Clutches we have installed in Hammerhead carts, CF Moto V5 motorcycles, Strada RX200 150cc scooter and now a 49cc scooter have added top end and rock soild take off power plus hill climbing not to be beat. Besides a cylinder kit/exhaust this is the best thing you can do for a scooter that needs top and bottom power.