The senior engine of the Rok Cup
Rok GP
- Displacement
- 125 cc
- Cooling System
- Liquid-cooled through external water pump
- Max Power
- 36 HP at 12,500 Rpm
- Bore and stroke
- 54.07x54mm
Exclusive UAE distributor since 2013
Rok GP shares its senior-class 125cc architecture with Rok GP Junior (reed-valve crankcase intake, liquid cooling, balancer shaft and power valve) retuned for more output. Vortex built it around the same ease-of-use philosophy as the rest of the Rok range, for drivers who want a livelier, higher-performing chassis to test themselves against.
Specifications
| Specification | Value |
|---|---|
| Displacement | 125 cc |
| Engine | 2 stroke |
| Cooling System | Liquid-cooled through external water pump |
| Exhaust | Oval exhaust and 2 boosters; Rok GP moulded exhaust with integrated exhaust silencer |
| Bearings | Radial bearing C4 |
| Bore and stroke | 54.07x54mm |
| Max Power | 36 HP at 12,500 Rpm |
| Max Torque | 20.2 Nm at 11,500 Rpm |
| Max | 15,000 Rpm (electronically limited) |
| Ignition | PVL digital ignition |
| Carburettor | Dell'Orto VHSH Ø 30mm |
| Silencer | Arrow intake silencer |
| Fuel Pump | Dell'Orto |
Specifications and photos from OTK Kart Group / Vortex Engines, checked on 27 September 2026. Descriptions written by Scuderia General Trading.
Buy the Vortex Rok GP on kartshop.me
Genuine Vortex engines, stocked in Dubai, on our online store.
