mazzucchelli vespa piaggio anticipato racing crankshaft - 12 pin
mazzucchelli vespa piaggio anticipato racing crankshaft - 12 pin
 
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mazzucchelli vespa piaggio 12 pin racing crankshaft for all vespa moped engines. this one is what you've been waiting for, nicely polished anticipato style, meaning the crank is already cut for a longer intake duration. so no need to take your nice shiny new race crank and hack at it with your dirty hands. also features dual oil holes on the small end of the con rod.

note: the woodruff key slot is machined ever so slightly too shallow so you may need to file down your woodruff key to get everything to fit perfecto.

characteristics of the crankshaft with modified inlet timing (anticipate)

the crankshaft with modified inlet timing is made of the same material and is the same dimensions as the standard unit, the differences are:

1 - the inlet is upgraded and polished to improve the power performance
2 - the shafts are burnished for a better heat dissipation and to prevent oxidation
3 - silver cage bearings are used to cater for increased RPM
4 - the con rod is polished and chromium plated for improved flow of gasoline into the cylinder.

this crank weighs 680 grams!

12 pin

taco rating taco rating 4.5 of 5 4.5 of 5 Total Reviews: 11 give your taco rating here

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5 of 5 Crank RIPS with the Treat Party for Ciao! February 22, 2026
taco eater : Chase Havoc from San Antonio, TX United States  
I got the treat party for ciao with the vespa piaggio tecno circuit performance pipe, (vespa olympia party), and adding this crank was the right thing to do! I rebuilt the entire motor so I thought I should get this and it was the right decision 4 sure! Bike now runs awesome and gets 45-50MPH yeah!

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5 of 5 So much juice!!!perfect fit and serious performanc January 31, 2026
taco eater : Juls_Italy from Jacksonville, FL United States  
This crankshaft delivers so much juice. Fitment was perfect and I had zero issues with the woodruff key. It slid in like a glove.

I am running this on a 2003 Kinetic TFR. Since the cases were already open, I opened the intake to 12.7mm and paired it with a 13.13 carb and a DR kit. The difference is night and day. Stronger pull, better throttle response, and it really wakes the motor up when everything is matched properly.

Also have to say, I love the old school vibes. The box and sticker feel straight out of the golden age, which is a nice touch.

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4 of 5 Lap and File! July 23, 2023
taco eater : Wes from San francisco, CA United States  
Wish these came ready to go. But they don’t. You’re going to have to file your woodruff key down or else it will not fit right and will ruin your crank and/or flywheel. And they aren’t cheap so you don’t want to do that.

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5 of 5 The Best! March 2, 2021
taco eater : Joe Runkle from Costa Mesa, CA United States  
The Best! With all the cranks I've installed this one is hands down the best. No cam issues at all.

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5 of 5 Just the crank you Vespa Bros desire February 3, 2017
taco eater : Ninja from New York, NY United States  
I've bought several of these Mazzi Cranks (5 or 6 of them). When I have to rebuild a motor this crank is the foundation on which it sits. I haven’t had any woodruff key issue but Will is a pretty rad guy so you might want to check the depth of your keyway to be 100%.


FUN Fact - The Mazzi Crank opens at 121 BTDC and closes at 45 ATDC, give or take a few degrees. So the total is 166 degrees of total intake duration timing. The Anticipato cranks give you about 20 more degrees of intake duration timing. This crank is worth the buy

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