Vespa Crankshaft With PX Ignition Super, Sprint, GL, Race
Product Code: BD14828
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Vespa - Conversion Crankshaft for Super, Sprint 125 / 150 using PX Flywheel and Stator Plate.
Contact breaker ignitions are usually prone to failure, of limited suitability for tuning and a major risk factor on long rides. Which is why they are often times replaced with electronic ignitions. To do so, fans of the Vespa 125 VNB/GT/GTR//Super/TS/150 VBA/VBB/VGLA/B/GL/Sprint/V/Super had only two options so far: They could either use a qualitatively arguable BAJAJ ignition, or go for the top quality but very expensive VESPATRONIC. The solution is the fusion of two crankshaft types, the base of which forms the classic Sprint crankshaft with its original oil seal and bearing housing. While the rotary valve side remains unaltered, MAZZUCCHELLI equips the flywheel side with the revised cone of a modern PX.
This conversion crankshaft allows you to use the proven and low priced electronic ignition of the PX on your vintage Vespa. Oil seals and bearing remain original Sprint. Due to housing tolerances you might encounter minor difficulties when mounting the ignition. To avoid a modification of the stator plate or the damage of the cables, we advise you to use a spacer.
Crankshaft / stroke 57mm / 20/25mm, M12
Conversion crankshaft (to PX ignition) with ?蘝 95mm crankweb (flywheel side), ?蘝 97,9mm crankweb (rotary valve side), oil seal housing 20mm, bearing housing 25mm, large px cone with M12mm thread, incl. piston rod bearing
Information courtesy of SIP
125 T2 - 59>65
125GT - 61>73
125 Sprint - 61>73 - Some Late Sprints used the P125X crankshaft
125 GTR - 68>78
125S - 59>65
125 Super - 65>69
125TS - 75>78
150 ( VBA1T) - 58>60
150 ( VBB1-2) - 60>67
150 T4 - D - 59>65
150GL - 62>64
150GL (dk) - 57-58
150 Sprint - 65>74
150 Sprint Velose - 69>79
150 Super - 65>79