MAZZUCCHELLI Shaft Engine with Disc Valve and Detailed Specifications
for PIAGGIO VESPA 125, VESPA 150, VESPA 2T AC VNT, VESPA GL ACMA VGL1, VESPA GL VGLA VGLB, VESPA GL VLA, VESPA GT VNL, VESPA GTR VNL, VESPA S 2T AC VNS, VESPA S 4T , VESPA SPRINT VELOCE VLB ...
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Special Price €148.50 Regular Price €169.17The MAZZUCCHELLI 131121 - 1313215 crankshaft represents an excellent choice for Vespa enthusiasts looking to optimize the performance of their scooter. Specifically designed for models such as Vespa 125 VNB, GT, GTR 1, Super, TS, and 150 VBA, VBB, T4, GL, Sprint, V 1, and Super 1, this crankshaft stands out for its engineering precision.
With a stroke of 57.0 mm and a connecting rod of 105.0 mm, it offers an ideal balance between power and stability. The rotary disc valve ensures quick response and smooth operation, while the connecting rod bearing, with dimensions of 15x19x20 mm, ensures long durability and reduced friction. The connecting rod pin of 22 mm contributes to a robust and reliable connection.
Technical specifications include a piston pin of 15 mm and a cone of 20/25 mm, with a seal seat on the alternator side of 20 mm and a bearing seat on the alternator side of 25 mm. The thread on the alternator side is M11x1.5, while the timing of 112/6 at PMS optimizes engine performance.
This crankshaft is the ideal solution for those looking to enhance the performance of their Vespa, ensuring smooth and responsive operation.


