Knuckleball (5spd) – You’re using your stock shift knob on your radical Kartboy shifter? Ditch that sticky rubber and replace it with a Knuckleball. 5 ounces of CNC’d 6061 aluminum that feels right in your hand, and gives just enough weight to make that shifter go from regular to extra tasty crispy. Cup the ball. You know you want to.

KB-014-C-5spd