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Crankshaft -MALOSSI MHR Big Bore 44mm stroke, 85mm conrod- Piaggio 50cc 2-stroke (for 13mm gudgeon pin)

M5313270
€370.80 * €412.00 * (10% off)

incl. VAT plus shipping costs

In stock: can be delivered or picked up in the store
Bearings
sizes: 13x17x17,5mm
Gudgeon pins
diameter: 13 mm
Crankshafts
stroke: 44 mm
thread rotor side: M12x1,25 right-hand thread
thread drive side: M12x1,25 right-hand thread
diameter crankwebs: 75.4 mm
width crankwebs: 41 mm
diameter bearing seat rotor side: 20 mm
diameter bearing seat drive side: 20 mm
diameter oil seal seat rotor side: 19 mm
diameter oil seal seat drive side: 18 mm
full circle crankshaft:
filling material for full circle: steel
material balancing weights: aluminium
rotary valve crankshaft:
crankcase has to be milled:
engine casing has to be modified:
diameter variator pivot: 14.8 mm
variator pivot type: toothed
can be used with genuine variator: yes
Connecting rods
length connecting rod: 85 mm
thickness connecting rod: 3.4 mm
diameter small end connecting rod eye: 17 mm
lubricating hole at small end bearing: yes
diameter crankpin: 18 mm
lubricating hole at crankpin bearing: slot
crankpin shims: yes
P For this item you get fidelity point/s
High-end racing crankshaft for Malossi’s Big Bore kits! HPC full-circle shaft for increased...Continue reading

Description


High-end racing crankshaft for Malossi’s Big Bore kits!

  • HPC full-circle shaft for increased primary compression -> increased performance
  • 44mm long-stroke
  • 85mm con-rod
  • 13mm piston pin
  • Optimised vario taper which may only be used with the MHR variator, the matching guide cover and bush are included in delivery
  • Best Malossi quality - Made in Italy!

In order to realise the increased stroke, Malossi’s engineers enlarged the crank web’s diameter. Therefore, you will need to machine your crankcase to 76.5mm.
 

Fits the following vehicles


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