Crankshaft -CASA PERFORMANCE, HD4 (48mm stroke)- Lambretta Lui 75 S/SL, J 125 (4 speed)

This is the HD4 (Heavy Duty) 4-speed crankshaft with 48mm stroke, made exclusively for Casa Performance in Italy.
It is a special crankshaft for all Smallframe Lambretta 4-speed Vega, Cometa and J125 M4 Starstream engines.
Please note that this crankshaft is not suitable for 3-speed engines.
Manufactured to the Casa Performance design, these race-quality plug 'n' play cranks feature forged cheeks, tungsten counterweights, a forged H-profile connecting rod, silver-plated bearing cages, and are extremely high quality.
Although primarily designed for Casa Performance ONE35 135cc cylinder kits, they are also suitable for standard engines.
Overall shaft width = 40mm
Stroke = 50mm
Piston pin bearing (included) = 16mm.