Replace number: 669 18 30, 669-18-30 Replace 4 stroke 49CC 50CC GY6 139QMB 139QMB Roketa Taotao Baja Vespa Jonway Scooter ATV Go Kart Moped Replace Most of Chinese Made Scooters Moped ATV Go Kart Quads Buggy Kymco, Such as JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, Dongfang, Kazuma, JCL, BMS Size: Circumference: 669mm (26.3 inch), width: 18mm (0.7 inch), Teeth Angel: 30 degree Package include: 2x drive belt Product Description Compatible with?? 2008 Roketa 50cc Tank Urban 50 Sporty50 Roketa Bahama Maui Sicily Tank Baotian 50QT-9 Maui MC-08-50 Bahama MC-07-50 Sunl SL50QT-7 SL50QT-2 Sporty 50 Dazon Diamondback Hammerhead/Adly Jet 50 Fox 50 Lance GTR50 Baja SC50 BE50 JL50QT-15 JL50QT-16 Jonway Beta50 Lambda 50 QT-6 QT-21 YY50QT5 YY50QT6 YY50QT21 JMstar Breeze Z-bike Longbo LB50QT-6 LB50QT-22 MotoFino MF50QT MF MF50QT-7 Eagle 49cc Excaliber Vanguard 50 Taotao 49cc 50cc 4 stroke scooter such as GT5 Fastwind amt50-a1 cy50-a cy50-b cy50-t3 funny50 Roman 50 Retro 50 Sp