Brand new 57mm GY6 ring set. The rings are stock size for most 150cc Chinese go karts. Will work in the following 150cc off-road go karts (buggies). Kinroad, Runmaster, Carter Talon, Twister Hammerhead, Baja 150, KPX, etc. Will work on SOME Chinese scooters with GY6 150cc engine with 57mm cylinder bore (many of the scooters are 58 or 59mm, so these rings will not fit).
NOTE: These gaskets WILL NOT FIT SUNL or Roketa 150cc engines (or any engine with the 2 bolt valve cover).
Shipping is $2.50 to anywhere in the Continental USA!!