For: Piaggio

21204

Mazzucchelli crankshaft "Racing" 12 mm KoBo | Piaggio Ciao, SI, Bravo, Boxer

EUR 175,70

Incl. 20% VAT.

Racing crankshaft suitable for all Piaggio moped models (Ciao, Si, Bravo, Boxer, Grillo).

This finely balanced tuning crankshaft with polished connecting rod and cheeks is suitable for all cylinders with 12 mm piston pins and impresses with its high-quality workmanship.

Due to the longer intake timing, this tuning shaft is ideal for racing mopeds.

Connecting rod eye (A): 15.0 mm
Ø Bearing seat right (B): 15.0 mm
Ø Bearing seat center (C): 15.0 mm
Stroke (2xD): 43.0 mm
Sleeve length (E): 87.0 mm
Width of crank webs (F): 33.0 mm
1st shoulder (G): 21.0 mm
2nd shoulder (H): 44.0 mm
3rd shoulder (I): 63.5 mm
Total length crankpin end (J): 90.0 mm
Ø Vario / clutch pin (H): 12.0 mm
Dimension needle bearing: Ø 12 / 15 x 14.7 mm (axe 12)
Thread: M8 x 1.25 mm

For assembly, a 16 x 0.5 mm shim must be inserted between the racing crankshaft and its main bearings.
You will find the corresponding spacers in the accessories section.

Quality product from the Italian manufacturer Mazzucchelli.

Details

ManufacturerMazzucchelli
Weight705 g
MaterialSteel
Area of applicationRacing
Cheek typestandard
Crankshaft stroke43 mm
Ø coupling pin / vario pin12 mm
Thread typeM8x1.25 (standard thread)
Ø piston pin (B)12 mm
Connecting rod length center-center87 mm
Number of gears1 pcs
Total length crankpin ignition side90 mm, 106 mm
Ø crank webs69.7 mm
Ø Connecting rod eye15 mm
Bearing seat right15 mm
Ø Bearing seat (ignition side)15 mm
Thread length16 mm
Dimension needle bearing12 / 15 x 14.7 mm (axe 12)
Wide crank webs33 mm
Length 1st paragraph21 mm
Length 2nd paragraph44 mm
Length 3rd paragraph63.5 mm
Ø 1st step (on the coupling side)15 mm
Ø 2nd shoulder (on the clutch side)14.4 mm
Ø 3rd step (on the clutch side)12 mm
Inlet control time139 °
Control time before O.T81 °
Control time according to O.T58 °

Suitable for the following models

Piaggio

Ciao - Ciao, Ciao, Ciao, Ciao

Si

Bravo/Superbravo

Boxer

Grillo

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