Long gearbox output shaft designed for vehicles with a swinging arm on the right-hand side, typically equipped with twin rear shocks.This shaft is compatible with various models using the 139QMB and 139QMA engine platforms.Suitable for use on , mopeds, ATVs, and go-karts powered by 49cc and 50cc 4-stroke engines.Length: 195mm Number of Splines: 19 Shaft Diameter (center): 26mm Shaft Diameter (smooth end): 17mm Commonly used in models such as , Kinroad, Twister Hammerhead, Carter Talon, Dazon, Roketa, DUNE, kart, Kasea, KPX, SUNL, Aimex, Alpha sports, Avanti, Bam X, Baotian, Bashan, BMS, BMX, Boreem, Runner, Cool Sports, Diamo, E Ton, Fushin, Fly, GMI, Hensim, Hi-bird, Ice Bear, Jackel, Jet Moto, JCL, Peace, JM , Jonway, KMD, Lance, -, Linhai, Longbo, Fuxin, Maxtrade, MDI, Meitien, Motofino, Motorino, NST, Panterra, Panther, Qlink Yiben, Red Streak, Schwinn, Seaseng, Strada, Tank, Terminator, Tomberlin, TNG, United Motors, Verucci, Wildfire, X-Treme, Yamati, ZNEN, and similar models.