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A 1000 RPM spring engages the higher gear range sooner than a higher-rated spring
less turbulent air is more dense and being dense is cool
Min Unload Stable Rotation (rpm): 1600 +/- 100
NCY Gasket kit
Customizer's Tip: Since this frame leaves the area under your seat more visible
Mazzucchelli Crankshaft; Vespa P/PX oem A 1000 RPM spring engagesMazzucchelli 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):
