Vortex ROK Shifter Engine – 125cc Gearbox Complete Package

Vortex ROK Shifter Engine – 125cc Gearbox Complete PackageThe Vortex ROK Shifter is the dedicated gearbox engine from the ROK engine family, built by Vortex Engines (OTK Group). Producing approximately 43 horsepower, the ROK Shifter delivers serious performance at an accessible price point, making it the engine of choice for drivers entering or competing in the ROK Cup Shifter championship series. Developed from Vortex's extensive experience with two stroke kart engines including the championship winning

or local club events

Mounting holes are 15mm ID to fit OTK Karts

The AiM MyChron 5 Lithium-Ion Replacement Battery is the factory-specification rechargeable battery for the MyChron 5S and MyChron 5 2T data loggers

If your class rules prohibit bolt-on side supports

The VRK is a proven performer at club

making it simple and accessible for young drivers entering competitive karting for the first time

Configuration: Short bar (~7") / Single camera

not an aftermarket copy

with reliability of a Briggs & Stratton product

The two-piece design allows quick gear ratio changes at the track without removing the axle — unbolt the halves

CHT or H2o)

This OEM needle valve is precision-ground to seat properly in the carburetor body's valve seat