Description
Excellent value for money Drive Belt, 139 QMA, 12 inch, rear disc brake, length 788mm. The belt has very good thermal properties, with optimum heat dissipation, so the belt retains outstanding grip even under very heavy use. A special fibre core leads to good flexibility and long belt life.
Note: for models with 12-inch wheels with disc brake (rear wheel).
When to change the V-belt?
On scooters, the engine power is transmitted to the rear wheel via the V-belt or drive belt, which connects the CVT variator to the torque drive. As a rule, it should be replaced every 10,000 to 20,000 km. The belt slips when it is heavily worn. By the way, a new belt also slips and needs a short run-in period.
How to change the drive belt?
Replacing the V-belt is a relatively easy, you don't need advanced technical know-how. The first step is to remove the variator cover to get to the variator. You'll need a piston stopper and a blocking tool to remove the CVT and clutch bell. You can then remove the worn V-belt and replace it with the new one. When reassembling, make sure that the V-belt is properly seated and has the correct tension.
Here's a little tutorial on How to change the CVT and drive belt (English Subs).
