Stage6's StreetRace cylinder has long been a spearhead and crowd favourite of the brand; the series is now being expanded by a version for Yamaha BW's / Slider (or MBK Booster / Stunt) that was designed with the help of MXS Racing, specialists for gearbox mopeds. Now owners and riders of 2-wheelers with vertical Minarelli engine have the chance to significantly increase their scooters' performance.
The cylinder has 5 transfer ports and a simple exhaust port. It is a 70cc cast iron cylinder with 2-ring piston and 10mm piston pin; the cylinder head included in the kit is a one-piece aluminium head. Also included is a gasket kit so you can mount and match the cylinder with your vertical Minarelli setup without difficulty.
Output and torque are enhanced, and since it is also extremely reliable with long life expectancy, this top quality kit is the perfect cylinder for everyday use.
To exploit the full potential of this cylinder, we recommend a 19 mm carburetor and a matching sports / mid-race exhaust.
Technical Details:
- Displacement: 70cc
- Bore: 47mm
- Piston: 2 rings, 46.95 mm
- Piston pin: 10mm
- Material: cast iron
- Cylinder head: aluminium
- no homologation / E-mark
