Crankshaft -QUATTRINI M244, stroke 60mm, conrod lenght 126mm (rotary valve)- Vespa Rally200, PX200, Cosa200 - for Quattrini M244 | Crankshafts | Crankshaft | Engines

Preview: Crankshaft -QUATTRINI M244, stroke 60mm, conrod lenght 126mm (rotary valve)- Vespa Rally200, PX200, Cosa200 - for Quattrini M244

Description

Max Quattrini offers with the M244 a completely new concept for an easy to assemble, ultra-strong touring engine. The set with 244ccm displacement consists of cylinder and crankshaft that can be installed in all Vespa PX200, Rally200 (Ducati ignition) and Cosa200.

Compared to the M232 kit, the M244 kit requires the crankshaft housing to be removed on the alternator side.
Due to the crankpin offset, Max Quattrini has provided the 60mm crankshaft with a larger overlap and therefore a larger outside diameter (on the left side).

It is designed for use with the original carburetor and touring exhaust and still achieves over 20hp and 24Nm at the rear wheel. An original PX200 GS with 12hp/9kW registered in the papers rarely exceeds 10hp and 15NM at the rear wheel.
60% more torque and 100% more power, in connection with a very touring-suited power delivery surely fulfills more than only the dream of every Vespa driver.

The M244 uses several technical tricks for this purpose:

The cylinder has no cylinder foot that protrudes into the engine housing
The crankshaft has a 16mm longer connecting rod than a standard shaft
A piston that is slanted at the bottom in the area of the overflows ensures maximum overflow area

The missing foot allows a much larger piston than usual to be used. The extra long connecting rod allows the overflow inlets into the cylinder to be placed further upwards than usual. This, in combination with the special piston, which has strongly bevelled surfaces on the underside of the overflow inlets, allows a very large overflow area without the need to machine the engine housing. The long connecting rod with a proud 126mm connecting rod also improves the connecting rod ratio from Lambda 0.26 to Lambda 0.22, which is important for the smooth running of an engine.

NOTE: Crankcase has to be spindled out for the 60mm stroke crankshaft!

Conclusion: Traveling or racing is no longer a question here, but an option

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€449.00 *

incl. VAT plus shipping costs

Available immediately (delivery time 1-3 working days*)

P For this item you get fidelity point/s

Bearings
sizes:	16x20x20mm
Gudgeon pins
diameter:	16 mm
Crankshafts
stroke:	60 mm
thread rotor side:	M12x1,25 right-hand thread
thread drive side:	M12x1,5 right-hand thread
diameter crankwebs:	98 mm
diameter bearing seat rotor side:	25 mm
diameter bearing seat drive side:	25 mm
diameter oil seal seat rotor side:	24 mm
diameter oil seal seat drive side:	31 mm
full circle crankshaft:
rotary valve crankshaft:
crankcase has to be milled:
engine casing has to be modified:
Connecting rods
length connecting rod:	126 mm
diameter small end connecting rod eye:	20 mm
OEM numbers (for comparison purposes only)
Quattrini	9860

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