The Kartboy Cable Shifter Lock has been designed to reduce the shifter play in 1-2 shifts. These have been designed with a 30% glass filled injection molded nylon, and will work with the factory shifter, as well as the STI option.
This is a great addition to the Kartboy Shifter Arm.
Note that bolt torque specs will be 10-12 in/lbs max for installation.