Double Layer Exhaust Gasket Bolt-to-Bolt Space (Center): 49mm
This Exhaust Gasket Use Durable High Temperature Resistance Material Will Reduce Much Noise.
High-quality Metal Exhaust Gaskets Will Seal Better than Any Cheap Paper or Ring gasket.
Used For 1PE40QMB 50cc 2-stroke, 1PE50QMF 90cc , GY6 139QMB 152QMI 157QMJ 50cc - 200cc, Also Work with Some Yamaha Zuma's Two-stroke Engines with Aftermarket Racing Exhaust Like Stage6 or Yasuni.