MALOSSI C-One crankcase for scooter with a Minarelli 2-stroke LC engine.

The cylinder base of this crankcase is tilted 10° degrees compared to the original shaft-gear axis. This innovative measure makes it possible to position the engine ports in front of the fuel system, eliminating one of the major weak points on the original Yamaha / Minarelli crankcase. However, it may be necessary to modify the helmet compartment.

The base of this C-One Yamaha / Minarelli crankcase has two different stud arrangements for mounting the cylinder with grub screws or for cylinders with flanged mount by means of flange and short threaded screw of max. 47.6 diameter.

The C-One crankcases are intended exclusively for scooters with standard rear disc brake! The axle spacing has been extended and with it the stability and steering precision, while the gearbox space has been significantly reduced.

Technical data:

Crankcase housing: high strength aluminium silicate alloy die casting material

Crankcase housing complete with bearing 5.150kg only

Distance between crankshaft and clutch shaft: 270mm

Cylinder stud bore distance: 48x48mm

Cylinder stud bolts made of 8.8 steel according to DIN EN 20898/1

Enlarged coolant port: 18mm outer diameter, 13.5mm inner diameter

Wheel axle bearing: 20x47x14mm

Bearing crankshaft: 20x47x14mm

Roll bearing: 16x22x12mm

Wheel shaft included

Diaphragm VL 18 included

Inlet manifold included: X360

Shaft seals made of FKM included

Delivery does not include the gearbox cover.