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
Manufacturer | Mazzucchelli |
Thread length | 16 mm |
Material | Steel |
Cheek type | standard |
Area of application | Racing |
Crankshaft stroke | 43 mm |
Ø coupling pin / vario pin | 12 mm |
Ø piston pin (B) | 12 mm |
Connecting rod length center-center | 87 mm |
Total length crankpin ignition side | 90 mm, 106 mm |
Ø crank webs | 69.7 mm |
Ø Connecting rod eye | 15 mm |
Bearing seat right | 15 mm |
Ø Bearing seat (ignition side) | 15 mm |
Dimension needle bearing | 12 / 15 x 14.7 mm (axe 12) |
Thread type | M8x1.25 (standard thread) |
Wide crank webs | 33 mm |
Length 1st paragraph | 21 mm |
Length 2nd paragraph | 44 mm |
Length 3rd paragraph | 63.5 mm |
Ø 1st step (on the coupling side) | 15 mm |
Ø 2nd shoulder (on the clutch side) | 14.4 mm |
Weight | 705 g |
Ø 3rd step (on the clutch side) | 12 mm |
Inlet control time | 139 ° |
Control time before O.T | 81 ° |
Control time according to O.T | 58 ° |
Number of gears | 1 pcs |
Suitable for the following models
Piaggio | Ciao - Ciao, Ciao, Ciao, Ciao Si Bravo/Superbravo Boxer Grillo |
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