Engine IAME Parilla OK-N Reedster V 2026 !

IAME Reedster V – OK-N / OK-N Junior Engine – 125cc

The new IAME Reedster V is the power unit developed for the OK-N and OK-N Junior classes. It is the direct evolution of the World Championship–winning Reedster IV, inheriting its proven racing technology while introducing updated, race-tested solutions for improved thermal stability, reliability, and consistent performance.

Key innovations include a low-mounted front balancer shaft, an extremely lightweight elliptical connecting rod, and a water-cooled crankcase designed to reduce inlet temperatures. The engine is built for top-level competition and fully compliant with CIK-FIA OK-N regulations.

Main Technical Specifications

🔵 Displacement: 124.08 cc
🔵 Bore: 53.89 mm (max 54.08 mm)
🔵 Stroke: 54.40 mm
🔵 Intake System: Reed valve
🔵 Cooling: Water
🔵 Transmission: Direct drive
🔵 Ignition: Digital
🔵 Starter: Push start
🔵 Max RPM: 15,000 rpm
🔵 Balancer Shaft: Yes

Engineering & Technologie

🔵 Low-positioned front balancer shaft for lower center of gravity and reduced vibration
🔵 Elliptical-section connecting rod, extremely light and turbulence-optimized
🔵 Water-cooled crankcase to stabilize intake temperature
🔵 Two-piece cylinder head with integrated decompression valve
🔵 Pneumatic adjustable power valve compliant with FIA Karting
🔵 High-strength aluminum sand-cast cylinder optimized with CFD
🔵 CNC-machined cast-iron liner (5-axis machining)
🔵 Sand-cast crankcase with reinforced structure
🔵 Direct drive with chain line positioned close to engine center
🔵 FIA-homologated digital ignition by PVL
🔵 One-piece CIK-FIA homologated exhaust system

Included Equipment

🔵 Two-piece cylinder head with decompression valve
🔵 Pneumatic adjustable exhaust valve
🔵 Main roller bearings
🔵 Complete balancer shaft
🔵 CNC reed block and carrier
🔵 FIA-homologated digital ignition
🔵 Ignition coil / ECU with vibration dampers
🔵 NGK BR10EG spark plug with cap
🔵 CNC exhaust manifold
🔵 CIK-OK homologated exhaust
🔵 Z12 splined sprocket

Not included: carburettor, engine mount plate, cooling system.