Vortex VTS 125cc OK Racing Engine

The new VTS model is specifically designed to compete at the highest levels of both national and international competitions in the OK category, the master class of the FIA Direct-Drive karting. This engine picks up the important baton of its predecessor, the DTS (able of winning no less than 2 world titles in four years), sharing the features at the basis of its successes: lightness, ease of management and use, effective set up of masses and centre of gravity, compact dimensions and reliability. In addition, the VTS takes advantage of new structures: above all, the renewed design of the exhaust valve, a solution that ensures greater efficiency at low revs and better overall engine performance.

Specifications

Features

• Cylinder with fully machined cast iron liner (dry liner)
• Number of cylinder/crankase transfer: 5/3
• Crankase reed valve intake
• Fully machined intake section and transfers
• connecting rod center to center distance: 102 mm

Manufacturer data: vortex-engines.com · retrieved 2026-09-05