Description
57mm Crankshaft for Vespa P/PX and Sprint Models
The 57mm crankshaft is designed for vintage Vespa scooters including the 125-150cc P/PX, Sprint, Sprint Veloce, and Super models. This replacement part is important for maintaining performance, especially if upgrading with a cylinder kit that increases RPMs. It is one of the vintage Vespa scooter parts that ensures your scooter runs smoothly and efficiently.
Construction and Compatibility
This crankshaft features a connecting rod length of 105mm and is built to OEM specifications for a proper fit. The design includes a stroke of 57mm and is compatible with various Vespa models. When replacing an old crankshaft, it's important to choose one that can handle the demands of increased RPMs from performance upgrades.
Installation Considerations
Replacing the crankshaft is a significant task that requires careful attention to detail. Ensure that the new crankshaft is compatible with your specific model and that all dimensions match your existing setup. Proper installation will help maintain the longevity and performance of your vintage Vespa scooter.
Specifications
- Stroke: 57mm
- Connecting Rod Length: 105mm
- Connecting Rod Bearing Dimensions: 15mm x 19mm x 20mm
- Connector Pin Length: 15mm
- Cone: 24/25mm
- Oil Seal Seat (Flywheel Side): 24mm
- Bearing Seat (Flywheel Side): 25mm
- Thread (Flywheel Side): M12 x 1.25
- Timing: 112°/6°
Fitment
This crankshaft fits the following Vespa models:
- Vespa GT/GTR (VNL)
- Vespa Sprint (VLB)
- Vespa P/PX 150 (VLX)
- Vespa P/PX 125 (VNX)
Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.
Shop more: Vintage Vespa Parts · Vespa Parts · Scooter Engines & Engine Parts · Scooter Parts
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