Mazzucchelli Crankshaft; Vespa P/PX

Mazzucchelli OEM-style 57mm replacement crankshaft for vintage Vespa 125-150cc P/PX , Sprint, Sprint Veloce, and Super model scooters. NOTE: If you're putting a cylinder kit on one of these models listed, make sure you get a crank that can stand up to the increased RPMs. 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° Compatibility: Vespa GT/GTR (VNL) Vespa Sprint (VLB) Vespa P/PX 150 (VLX) Vespa P/PX 125 (VNX) About Mazzucchelli: Continuous technological research and reaching higher constructive peaks are the main objectives of Mazzucchelli. The company specializes in producing crankshafts and spare parts for motorcycles and other applications.