This graded disc is a precise and efficient tool for the tuning of 2-stroke engines, resistant to petrol and other additives, black lacquered. With the adapter, the disc can be used on all 50cc models.
The delivery includes an indicator which is easily screwed onto the cylinder by means of a stud bolt. For all those who want to get the maximum performance out of their machine.
Suitable for crankshafts with 10x1,25mm thread (flywheel side)
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