Crankshaft Stage6 HPC MKII - Piaggio

#P544

£154.25

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£154.25

Description

The Stage6 HPC MKII (high primary compression) crankshaft is a full-circle crankshaft, and as such increases primary compression in the crankcase. It has been developed in cooperation in Germany and is completely made of metal (i.e. no plastic padding). The bearings can handle up to 16,000 rpm!

Particular attention has been paid to the Piaggio crankshaft. With completely reinforced shaft the way you know it from MHR Team crankshafts. Comes with machined oil-pump drive and spacer

Made in Italy.

Stage6 S6-8014001

Fitment

Aprilia SR Motard 50cc
Aprilia SR50R '03 onwards (Piaggio engine)
Piaggio/Gilera 50cc 2-stroke scooters (air cooled)
Piaggio/Gilera 50cc 2-stroke scooters (liquid cooled)
Vespa 50cc 2-stroke

Spares

Question

Q. How would I go about repairing the main bearing on this crank? Where I can buy big end bearing?
A.
The big end bearing is not available as a spare part from Stage6. Usually the cost and time it takes to replace the big end bearing out weighs buying a new crank.
Q. The drive for the water pump isn’t splined so could spin on the shaft. Is it reliant on the variator nut holding it?
A.
The pressure of the variator nut holds the cog in place when correctly spaced. The spline is not designed to take any drive load.
Q. Is it 12mm?
A.
These are for pistons with a 12mm gudgeon pin (standard).
Q. Dose this include the nuts for both sides of the crankshaft?
A.
Yes it does
Q. Does this crank come with the bearings or do i need to buy new bearings and if i do which are the best bearings to buy for this crankshaft?
A.
The crank comes with special silver small end bearing conrod bearings but crankshafts do not come with main bearings.
You would want to go for C4 uprated bearings with this crankshaft:

or...