For increaseing of standard gear ratio 3,8:1. For increaseing to gear ratio 14,44:1 you add one piece of MPJ 8069, for change to gear ratio 54,9:1 use two pieces of MPJ 8069 and etc. This accessory is for decreaseing rpm of output shaft, not for multiplication of torque. Content of package: 1 pc
€12.57 tax excl.