50cc High Performance Cylinder Kit for 50cc GY6 QMB139 Scooter Engines HeyBike Tyson Rollator grips too low for

Rollator grips too low for comfort

(2010 and later Via Rapido models use a hub motor

Delco GTX12-BS

use this replacement to have your Companion I looking good again

50cc High Performance Cylinder Kit for 50cc GY6 QMB139 Scooter Engines HeyBike Tyson Rollator grips too low forOur 50cc high performance scooter cylinder kit is great for increasing overall performance on small 50cc GY6 QMB139 scooter engines. The 50cc scooter engine kit increases low end acceleration as well as top speed. This engine kit includes everything shown in the image; cylinder, rings, gaskets, roller weights, and more. This kit also comes with the cylinder head and valves and is our most complete 50cc engine upgrade kit available. This high