BT49QT-10, BT49QT-11 Retro, BT49QT-12, BT49QT-12C1, BT49QT-D Hero, BT49QT-12G, BT49QT-18, BT49QT-20A2, BT49QT-2A Big Panther, BT49QT-2C Falcon, BT49QT-9 Ecobike, BT49QT-F1 Eagle, BT49QT-9F3 Eagle, BT49QT-9M, BT49QT-9N, BT49QT-9R, BT49QT-9 R1, BT49QT-9 R3, BT49QT-9 S1, BT49QT-9 S3,BT49QT-9 Sprint, Babel 50 (BT49T-12), Tanco 50 (BT49T-12), Rocky 50 (BT49QT-12), BT50QT-11 Retro, Veloce 50, Veloce GT5, City Star (YY50QT), Retro Star, Wind 50, DFE50QT-18, DFE50QT-2, DFE50QT-5, DFE50QT-6, DFE50QT-8, GMX 50 (4-Stroke), Dolphin 50, Sprint 10(SK50QT-A), Sprint 12(SK50QT-B), Venus 50, FY50QT-10, FY50QT-20 Cross, FY50QT-8, HT50QT-10, HT50QT-16, HT50QT-22 Retro, HT50QT-36, HT50QT-6, HT50QT-7, HT50QT-9, Fighter 50(JL50-QT-5), Accipiter 50 (JSD50QT-21C) (4-stroke), Eagle 50 (JSD50QT-21) (4-stroke), Falcon 50 (JSD50QT-21A) (4-stroke), Sunny 50 (JSD50-QT-27) (4-stroke), Z-Bike 50 (JSD50QT-15) (4-stroke), Zeus 50 (JSD50QT-15C) (4-stroke), KM 50 (4-stroke), Flory 50, RMC E50, Agility 50 Euro 2, Filly 50, People 50 (4-stroke), Vitality 50 Euro 2, Yagger GT50 (2-stroke), LK50QT-14B, LK50QT-15C, LK50QT-15E, LK50QT-17A, LK50QT-17B, LK50QT-19, LK50QT-7A, LK50QT-7B, LB50QT-10, LB50QT-15,LT50QT-E, City Spider 50 (4-stroke), Speed Racer 50 (4-stroke), Street Race 50 (4-stroke), Super power 50 (4-stroke, MD50QT, MD50QT-3, MD50QT-6, MD50QT-9A, MD50QT-9B, Ecobike 50, Clea 50 (4-stroke), Cobi 50 (4-stroke), Desire 50 (4-stroke), Hawk 50, Speedfight 3 50 AC (4-stroke), V-Click 50, Vivacity New 50 (4-stroke), Capriolo 50, RS 400(Jinan Qingqi-QM50QT), RS 450 50, 49er 50(10’’), 49er (12’’), Bee 50, Eagle 50, SHB 50QT-16A, Athene 50 (SHB50QT-20), SHB50QT-6, Roma 50 (SK50QT-9), Sprint 10 (SK50QT-A), Sprint 12 (SK50QT-B), Venus 50, Brio 50, Cab 50 (ZS50QT-4)