Variator competition PROTO 50 / Derbi Variant 74 J.Costa

The tuner J.Costa offers us an optimal Variator for competition Derbi Variant / Proto 50.

Using the highest market standards, we ensure that the J.Costa variator is the most complete and provides maximum performance.

The kit includes:

Variator

• 3 different weights so that you can adjust the transmission ratio according to your riding style or circuit needs. It is recommended to have technical knowledge for the assembly and tuning of this component.

Variator assembly instructions

Valid for:

• Derbi Variant Star III / Star V