These sprockets are made of heavy gauge steel for long lasting life. To be used on 35 chain with 2" center hole and has popular four bolt hole industry pattern with mounting holes 2" apart. #35 Chain 60 Tooth 7-1/4" OD. Mounting holes are 3/8."
Fits Go-Karts & Mini Bikes equipped with Predator 79cc , Predator 212cc or 420cc