You are here:
WebshopVespa Smal...TuningRacing Cra...Racing Crankshaft POLINI RACE
 Your Shopping Cart
Your shopping cart is empty.
calculate shipping Live! Shipping Costs Calculation
 Your Notepads
notepad icon  Please login to use the Notepads.
webshop icon All Webshop
Your Scooter
Show only articles for selected scooter.
Most Popular Articles

prev Pictures may look differentnext

Racing Crankshaft POLINI RACE

for Vespa 50/N/L/R/S/Special
disc valve, stroke 43,0mm, conrod 87,0mm,
cone 19/20mm, M10,
ROAD-TUNING, for everyday use
& reliable

For race use only. Not admitted in the area of the German StVZO!

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 43mm / connecting rod 87mm / 19/20mm, M10

Racing crankshaft with Ø 82mm crankweb (flywheel side), Ø 87mm crankweb (disc valve side), 87mm connecting rod, oil seal housing 19mm, bearing housing 20mm, 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.

OEM Numbers (for the purpose of comparison)  210.0054 (POLINI)

14000600 162,00 €

incl. VAT  plus shipping.
87311200 5,20 €

incl. VAT  plus shipping.
90030000 9,50 €

incl. VAT  plus shipping.
14000540 162,00 €

incl. VAT  plus shipping.
15557910 9,10 €

incl. VAT  plus shipping.
Our Alternatives
for this item
45062000 95,00 €

incl. VAT  plus shipping.
45102000 92,00 €

incl. VAT  plus shipping.
45061700 112,00 €

incl. VAT  plus shipping.
45101000 90,00 €

incl. VAT  plus shipping.
Customers choice
might interest you...
88500000 1,20 €

incl. VAT  plus shipping.
88510000 1,30 €

incl. VAT  plus shipping.
87060000 1,20 €

incl. VAT  plus shipping.
92975000 21,00 €

incl. VAT  plus shipping.
67060000 0,90 €

incl. VAT  plus shipping.
Racing Crankshafts

159,00 €
Our warehouse is fully stocked.

incl. VAT
plus shipping

1.300g / piece
Stock on hand   Amount
Free shipping

Product forums
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 50 / N 50 V5A1T 2T AC '63-'71
VESPA 50 L 50 V5A1T 2T AC '66-70
VESPA 50 R 50 V5A1T 2T AC '69-'83
VESPA 50 Revival 50 V5R1T 2T AC '90-
VESPA 50 S 50 V5SA1T 2T AC '63-'84 (N)
VESPA 50 Special 50 V5A2T 2T AC '69-'72
VESPA 50 Special 50 V5B1T 2T AC '72-'75
VESPA 50 Special 50 V5B3T 2T AC '75-'83
VESPA 50 Special Elestart 50 V5B4T 2T AC '75-'76
VESPA 50 Special Elestart 50 V5B2T 2T AC '72-'75
VESPA 50 Special Elestart 50 V5A3T 2T AC '69-'72

Legend: Quantity In Stock

This article is in stock and ready to be shipped immediately. Our warehouse is fully stocked.
This article is in stock. This item is in stock in sufficient quantity.
This article will soon be sold out. This item will be sold out soon.
This item is ordered by us especially for you. Deliverytime might take more than 3 weeks. You cannot cancel this order any more. This item needs to be ordered especially for you. The expected delivery time is about 3 weeks.
This article is currently not available but will be back in stock soon. This item is currently not available but will be back in stock soon.
This article is currently not available. This item is currently not available. You can order it nevertheless. The expected delivery time is about 3 weeks.