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Crankshaft -MAZZUCCHELLI Racing (rotary valve)- Vespa V50, PK50 S (Ø=19mm cone)

1610006
Crankshaft -MAZZUCCHELLI Racing (rotary valve)- Vespa V50, PK50 S (Ø=19mm cone)
Crankshaft -MAZZUCCHELLI Racing (rotary valve)- Vespa V50, PK50 S (Ø=19mm cone)
Crankshaft -MAZZUCCHELLI Racing (rotary valve)- Vespa V50, PK50 S (Ø=19mm cone)
Crankshaft -MAZZUCCHELLI Racing (rotary valve)- Vespa V50, PK50 S (Ø=19mm cone)
Crankshaft -MAZZUCCHELLI Racing (rotary valve)- Vespa V50, PK50 S (Ø=19mm cone)

Description


High quality racing crankshaft with extended intake timing to get more mixture into the cylinder per crankshaft revolution. This increases the power over the entire speed range and the engine can continue to rev up.

straight in conjunction with high-revving cylinders a good measure to mobilize the full power and to be able to use larger carburetors from 19mm on the Smallframe with less stroke.

In addition, with the racing shaft, displacements over 100ccm can also be fed with mixture.

TIP:

For cylinders from 75cc displacement onwards, order a wider upper connecting rod bearing directly! (see "Accessories")


AI-translation

 
€119.00 *

incl. VAT plus shipping costs

Available immediately (delivery time 1-3 working days*)
P For this item you get fidelity point/s
Bearings
sizes: 12x17x13mm
Gudgeon pins
diameter: 12 mm
Crankshafts
stroke: 43 mm
thread rotor side: M10x1,5 right-hand thread
thread drive side: M10x1,5 right-hand thread
diameter crankwebs: 87 mm
diameter bearing seat rotor side: 25 mm
diameter bearing seat drive side: 17 mm
diameter oil seal seat rotor side: 19 mm
diameter oil seal seat drive side: 22.7 mm
full circle crankshaft:
rotary valve crankshaft:
length rotary crankweb: 182 mm
Vespa V50, PV - intake timing for short rotary surface (22mm) (°): 142
Vespa PK XL2, ETS - intake timing for long rotary surface (28mm) (°): 148
Vespa PK XL2, ETS - intake timing for long rotary surface (37mm fully modified) (°): 158
crankcase has to be milled:
engine casing has to be modified:
Connecting rods
length connecting rod: 97 mm
diameter small end connecting rod eye: 17 mm
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