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 10 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): 13.0 mm
Ø Bearing seat right (B): 15.0 mm
Ø Bearing seat center (C): 15.0 mm
Stroke (2xD): 43.0 mm
Shell 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 10 / 13 x 14.2 mm (axe 10)
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.
| Manufacturer | Athena |
| Cheek type | standard |
| Crankshaft stroke | 43 mm |
| Ø coupling pin / vario pin | 12 mm |
| Connecting rod length center-center | 85 mm |
| Total length crankpin ignition side | 91.6 mm |
| Ø piston pin (B) | 10 mm |
| Ø Connecting rod eye | 13 mm |
| Ø Bearing seat (clutch side) | 15 mm |
| Ø Bearing seat (ignition side) | 15 mm |
| Thread type | M8x1.25 (standard thread) |
| Dimension needle bearing | 10 / 13 x 14.2 mm (axe 10) |
| Length 1st paragraph | 21.9 mm |
| Length 2nd paragraph | 43.2 mm |
| Length 3rd paragraph | 63.5 mm |
| Number of gears | 1 pcs |
| Area of application | Racing |
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo |
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