Lambretta bgm PRO crankshaft - Made in Italy by Primatist.
This is where the best Lambretta crankshaft design meets the best crankshaft manufacturer.
Our Lambretta crankshaft design is characterised by two factors compared to the crankshafts of other manufacturers:
Balancing factor: We don't cut corners here and the balancing factor, which is specially calculated for the weight of the Lambretta pistons, ensures silk smooth and low-vibration running. We work with solid tungsten weights (50 grams per crank web), additional copper weights and hidden pockets.
Full circle / HPC (High Primary Compression) crank: This is the next unique selling point for your Lambretta engine. This feature delivers more power across the complete rev range thanks to the increased pre-compression.
Other features include:
The bgm PRO Competition shafts are the result of a total of 20 years of experience. A further three years of development work and testing went into optimisation to create a shaft that offers maximum torsional rigidity and stability. Here in the version from Primatist, who have more than proven their expertise in crankshaft design with countless victories in motorsport from the 1/8 mile drag racing to the 24-hour endurance races.