Minimob Racing high performance coil and plug wire combo increases spark for better fuel combustion. Designed to work with todays high output 140cc engines, this coil will work on most pit bike and mini engines from Lifan Jialing GPX in all sizes 50 70 88 90 110 120 124 125 140. Excellent upgrade to maximize efficiency on Pitster SSR Motovert SDG RCM Thumpstar etc