For: Piaggio

24972

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

EUR 182,80

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): 21.9 mm
2nd shoulder (H): 43.2 mm
3rd shoulder (I): 63.5 mm
Total length crankpin end (J): 91.6 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

Attention: The crankpin is 1 mm shorter than on the original crankshaft, the camshaft end must therefore be removed by 1 mm to ensure that the flywheel sits correctly on the cone.

For installation, a 16 x 0.5 mm shim must be inserted between the racing crankshaft and its main bearings.
The corresponding shims can be found in the accessories section.

Quality product from the Italian manufacturer Athena.

Details

ManufacturerAthena
Cheek typestandard
Area of applicationRacing
Crankshaft stroke43 mm
Ø coupling pin / vario pin12 mm
Ø piston pin (B)12 mm
Connecting rod length center-center85 mm
Total length crankpin ignition side91.6 mm
Ø Connecting rod eye15 mm
Ø Bearing seat (clutch side)15 mm
Ø Bearing seat (ignition side)15 mm
Dimension needle bearing12 / 15 x 14.7 mm (axe 12)
Thread typeM8x1.25 (standard thread)
Wide crank webs33 mm
Length 1st paragraph21.9 mm
Length 2nd paragraph43.2 mm
Length 3rd paragraph63.5 mm
Number of gears1 pcs

Suitable for the following models

Piaggio

Ciao - Ciao, Ciao, Ciao, Ciao

Si

Bravo/Superbravo

Boxer

Grillo

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