Pignone Freno Mini Mozzo 1" Foro 1/4" Keyway con Ferramenta per Go-Kart Mini Bike
Works for 1" go kart hub axle. 1 x Sprocket Hub （ Bolt thread size: M6-1.0 ）. Easy to install and holds up well. Great for gear and brake mounting. Hope you can understand that. Made of high-quality material and machined well within tolerances.