The first Vortex engine for OK-N
VTS-N
- Displacement
- 125 cc
- Cooling System
- Water cooled with external pump
- Maximum Engine Speed
- 15,000 Rpm with rev limiter
- Bore and stroke
- 54x54 mm (square)
Exclusive UAE distributor since 2013
The VTS-N was Vortex's first engine built for OK-N, the national-only class FIA Karting introduced in 2023 with Vortex's own technical input. Built on the OK-class VTS, it shares the 104 mm connecting rod and exhaust type but drops the exhaust valve under CIK-FIA rules and runs a 15,000 rpm limiter, with a 24 mm diaphragm carburettor and a narrow exhaust manifold available to convert it for OKJ-N.
Specifications
| Specification | Value |
|---|---|
| Displacement | 125 cc |
| Engine | 2 stroke |
| Cooling System | Water cooled with external pump |
| Main Bearings | Roller bearings |
| Bore and stroke | 54x54 mm (square) |
| Maximum Engine Speed | 15,000 Rpm with rev limiter |
| Ignition | Selettra CIK-FIA homologated |
| Other features | Cylinder with fully machined cast iron liner (dry liner); 5/3 cylinder/crankcase transfer ducts; crankcase reed valve intake; connecting rod centre-to-centre distance 102 mm |
Specifications and photos from OTK Kart Group / Vortex Engines, checked on 27 September 2026. Descriptions written by Scuderia General Trading.
Buy the Vortex VTS-N on kartshop.me
Genuine Vortex engines, stocked in Dubai, on our online store.
