Specification:
- Displacement: 58 cm3
- Bore / Stroke: 42 / 42 mm
- Power Output : 7 PH / 6200 RPM
- Weight Without Ignition: 1780 g
- Ignition: ICU - S  (electronic, microprocessor)
- Ignition Weight: 185 g
- Carburetor: Walbro

MVVS 58LE IRS Limited edition of 58 IRS PROSPORT engine. This engines will be made only 200 pieces. First customers can choose serial number 1-200.