The C-Line gearboxes are available with 12 (ST7), 9 (ST3) or 6 (ST2) gears. Patented shifting technology in a compact housing made of lightweight magnesium. The magnesium housing of the C-line is treated with a durable, anthracite metallic coloured powder coating. For additional peace of mind, a protective film protects the gearbox from stone chips.

Common to all gearboxes is the spur gearing consisting of two sub-units connected in sequence. The individual gear ratios are derived by matching the two sub-units with various cog pairings. The C1.12 gearbox is built using a 4-gear unit mated to a 3-gear unit – a 4×3 gearing type. The C1.9 is a 3×3 type and the C1.6 is a 3X2 type.