Gearbox Lambretta J125 3m -CASA LAMBRETTA- Lambretta - suitable for all 3-speed cases

Gearbox Lambretta J125 3m -CASA LAMBRETTA- Lambretta - suitable for all 3-speed cases.

Gear wheels and auxiliary shaft of the Lambretta J125 3m (3 speed) that can be installed in all engines with 3 speed gearbox. Ideal in all cases where the J50 and lui 50 gearboxes have become unusable after tuning measures due to their short gradation.

Gradation:
• Gear 1 / auxiliary shaft: 48 /11
• Gear 2 / auxiliary shaft: 42/16
• Gear 3 / auxiliary shaft: 37/21

Thus, with the standard gear ratio with front pinion with 14 teeth and rear with 46 teeth, these gear ratios result: 1. Gear: 14,34, 2nd gear 8,63, 3rd gear 5,79.

In comparison the J50 Special with original 13/46 sprockets has these ratios: 1st gear: 22,80, 2nd gear: 12,50, 3rd gear: 8,14._{AI-translation}