Flowed Racing Crankshaft SERIE PRO BY W5 for Vespa 200 Rally/P200E/PX200 E/Lusso/MY/Cosa 

disc valve, stroke 57,0mm, conrod 110,0mm, 
pin 16mm, valve timing: 138°
/6° post TDC, 
finely balanced

Flowed racing crankshafts are the hottest new crankshaft upgrade in the racing world. There´s been a lot of experimentation that has resulted in the innovations we see here establishing themselves. In the SERIE PRO line, these upgraded crankshafts from the German tuning master WORB5, based on MAZZUCHELLI and TAMENI shafts.

The crankwebs have been specially modified and gas flowed. The shaft contour is designed to guide the fuel mix through the crank flange instead of hitting it on entrance. This keeps your fuel flow moving steadily instead of being blocked or creating unnecessary turbulence. Flange modification allows more usable volume. Compression sinks, more fresh fuel can flow in and a higher fill is achieved. This interaction allows higher speed ranges and pumps up performance. Additionally, the crankshafts are finely balanced; the connecting rod swings at 12 o`clock. Give your T5 a real treat when you outfit it with this racing shaft.

Conclusion: higher performance than regular racing crankshafts with less vibration.