derestriction kit premium w/ black exhaust manifold for Beta RR50 2017- 39900

Complete derestriction kit suitable for Beta RR 50 gear shift mopeds (model year 2017 up). Premium version with black exhaust manifold.

Included in the kit are:

• derestricted exhaust manifold black
• sprocket black 50 teeth (instead of 60)
• main nozzle #115
• carburetor needle A39
• cap for secondary air system
• comprehensive installation instructions including removal of the speed limit of the power-up ECU