JMCHstore L7T Racing Spark Plug For Coleman B100 RB100, Realtree RT100; Monster/Mega Moto 80cc(MM-B80) 105CC(MM-B105) Mini bike; For Phatmoto 79cc Gas Bike; Monster Moto MM-K80R( 79.5cc ) / 100cc Mega Max Go kart; For COLEMAN B100 105CC Mini Bike For Motovox MBX10 MBX11 MBX12 Mini bike; Oryxearth 105cc Mini bike; For Lifan 79cc/105cc 152-3F Engine. High ignition Performance; Reduce Engine Vibration; Longer Spark Endurance; Increase Start-up Speed. With Racing Spark Plug, Higher Engine Performance & Stronger Driving Power. White ceramic thread diameter: 12mm. Metal thread diameter: 14mm. Hex diameter: 19mm/0.73”. Package include: 2 x spark plug. A backup is always right : ) Brand new and OEM equivalent quality replacement part; Durable and easy to install JMCHstore Racing Spark Plug For Monster moto 80 cc 105cc