Malossi MHR 70cc Aluminium Cylinder Kit for Yamaha Zuma


The Malossi MHR 70cc Aluminium Cylinder Kit replace the standard factory cylinder. This is the most significant performance modification you can make to a scooter engine. 10mm gudgeon, this kit is for the vertical Minarelli engine found in the Yamaha Zuma.

Only 1 available, becoming extinct!

In Stock at Aus Warehouse

SKU: M317559 Categories: , Tags: , , ,


Malossi MHR 70cc Aluminium Cylinder Kit for Yamaha Zuma

The Malossi Hyper Racing cylinder is a high-end cylinder developed in the Trophy Cup. The casting quality and the coating are typically Malossi above any doubt.

The surfaces of the channels and the timing have been specially adapted to racing use. With an output of up to 22hp (16kW) and speeds of up to 15000 rpm, it goes without saying that Malossi uses only the best materials to produce these cylinder kits. Like Polini’s Evolution series, the MHR is not to be seen alone but rather as a complete kit. Because a tuning can only be as successful as the weakest link in the chain allows it to be.

The MHR convinces besides the top workmanship with a nicely split exhaust (T-shape) and large overflow channels, to which the body should be adapted.

performance class: racing
Gudgeon pins
diameter: 10 mm
Spark plugs
thread type: M14x1,25
thread spark plug: short
heat rating NGK: B9HS
displacement: 68 cm³
bore: 47 mm
engine type: 2-stroke
type of cooling: air cooled
material: aluminium
material piston cylinder surface: Ceramic
cylinder head inclusive:
cylinder gasket set inclusive:
number of transfers (incl.boost ports): 6
number of boost ports: 2
shape exhaust port: dual port
exhaust mounting: flange
flange type: 2 studs
exhaust bolt pitch: 48 mm
thread exhaust studs: M6
stroke: 39.2 mm
number of piston rings: 1
production method piston: cast
Piston rings
piston ring type: common ring
thickness rings: 1,2mm
circlip type: C-type
wire size of circlip: 1,0mm
Cylinder heads
cylinder head type: one piece

*Performance scooter parts do not come with a warranty*