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WebshopVespa Smal...TuningRacing Cra...Racing Crankshaft MAZZUCCHELLI
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Racing Crankshaft MAZZUCCHELLI

for Vespa 90/R/SS/100/125/PV
/ET3/PK80-100 S/PK125
disc valve, stroke 51,0mm, conrod 97,0mm,
pin 15mm, cone 19/20mm, M10

FOR RACE USE ONLY

Racing crankshafts are a simple and effective tuning step for every disc valve engine. A racing crankshaft enables higher numbers of revs. The engine becomes more lively and agile. The high quality racing crankshafts from Italian company MAZZUCCHELLI convince thanks to their minimum production tolerances and limited bearing clearance. This guarantees high rev endurance and an exceptionally high product lifespan.

 

In contrast to the original crankshaft, a racing crankshaft has a clearly extended inlet time. This means the charge level is increased. The crank webs are flow-optimised and polished. Turbulence and flow separations are thereby reduced. A polished connecting rod and a lower connecting rod bearing as a silver bearing satisfy the highest aspirations. All crankshafts are supplied with upper connecting rod bearings.

Those who want to convert to electronic ignition should go for the 20/20mm racing crankshaft. In combination with a racing cylinder, the thicker and therefore more stable cone is recommended. The ETS crankshaft should be installed on high revving engines which are equipped with high performance cylinders or very light flywheels. This omits the risk of the crankshaft stump from being torn away. A set of conversion bearings and the corresponding oil seal are then required in the V50/PV/ET3/PK engine casings.

 

A strengthened connecting rod is fitted to the RACE version. Additional lubrication holes in the upper (on the 125 series only) and lubrication slots in the lower connecting rod eyelet lead to additional stability and allow higher numbers of revs due to the superior lubrication.

 

Conclusion: not only a good idea in combination with a tuning cylinder. A boost in performance can also be achieved with an original cylinder. MAZZUCCHELLI stands for long product lifetime and durability.

 

SIP community user '„NOSw11', Italy:

"Excellent! As I had previously installed a crankshaft with bronze bushing, due to the tuning I wanted to have a crankshaft with needle bearings under all circumstances. I therefore chose Mazzucchelli as I can be sure that their products are produced with the highest level of care and the price is right."

 

Racing crankshaft / stroke 51mm / connecting rod 97mm / 19/20mm, M10

Racing crankshaft with Ø 82mm crankweb (flywheel side), Ø 87mm crankweb (rotary valve side), 97mm connecting rod, oil seal housing 20mm, bearing housing 19mm, pointed cone with M10mm thread, incl. connecting rod bearing

 

SIP-TIP: New bearings, oil seals and keys are a must. Same goes for sealing kit, clutch-, and flywheel nuts. It also makes sense to use the crankshaft tools # 27338000, # 21071000 and # 18119000. Ideal for POLINI, MALOSSI, DR and PINASCO racing cylinders with rotary valve.


Customers also searched for this article with:  race crankcase, racing crankcase, race crankshaft, tuning crankshaft, performance crankshaft


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$85.66
Art.No.
45065000
1,300g / piece
Stock on hand   Amount

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icon scootermodels This product fits the following models
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 50 / N 50 V5A1T 2T AC `63-`71 cylinder > 125cc necessary
VESPA 50 L 50 V5A1T 2T AC `66-70 cylinder > 125cc necessary
VESPA 50 R 50 V5A1T 2T AC `69-`83 cylinder > 125cc necessary
VESPA 50 Revival 50 V5R1T 2T AC `90- cylinder > 125cc necessary
VESPA 50 S 50 V5SA1T 2T AC `63-`84 cylinder > 125cc necessary
VESPA 50 Special 50 V5A2T 2T AC '69-'72 cylinder > 125cc necessary
VESPA 50 Special 50 V5B1T 2T AC '72-'75 cylinder > 125cc necessary
VESPA 50 Special 50 V5B3T 2T AC '75-'83 cylinder > 125cc necessary
VESPA 50 Special Elestart 50 V5B4T 2T AC '75-'76 cylinder > 125cc necessary
VESPA 50 Special Elestart 50 V5B2T 2T AC `72-`75 cylinder > 125cc necessary
VESPA 50 Special Elestart 50 V5A3T 2T AC '69-'72 cylinder > 125cc necessary
VESPA 50 SR / Sprinter 50 V5SS2T 2T AC `71-`79 cylinder > 125cc necessary
VESPA 50 SS / Super Sprint 50 V5SS1T 2T AC `65-`71 cylinder > 125cc necessary
VESPA 90 90 V9A1T 2T AC `63-`84 25001 ->
VESPA 90 Racer 90 V9SS2T 2T AC `71-`74
VESPA 90 SS Super Sprint 90 V9SS1T 2T AC `65-`71
VESPA 100 (UK) / 100 Sport (US) 100 V9B1T 2T AC `78-`90 -> 50000
VESPA 125 125 VMA1T 2T AC `65-`67
VESPA 125 Primavera 125 VMA2T 2T AC `67-`83
VESPA 125 Primavera ET3 125 VMB1T 2T AC `76-`90
VESPA PK 50 50 V5X1T 2T AC `82-`84 -> 14531 (small cone), cylinder > 125cc necessary
VESPA PK 50 S / Elestart 50 V5X2T 2T AC `82-`84 -> 181678 / -> 3007754 (small cone), cylinder > 125cc necessary
VESPA PK 50 S Lusso / Elestart 50 V5X2T 2T AC `85-`88 -> 181678 / -> 3007754 (small cone), cylinder > 125cc necessary
VESPA PK 80 S / Elestart 80 V8X5T 2T AC `82-`86 -> 5634
VESPA PK 80 S Lusso / Elestart 80 V8X5T 2T AC `85-`88 -> 5634
VESPA PK100 S / Elestart 100 V9X1T 2T AC `82-`84 -> 41358, small cone
VESPA PK125 125 VMX1T 2T AC `82-`85 -> 7412

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