Inside diameter: 35mm(1.38″), length: 85mm(3.35″)Replacement for Xr50 Crf50 50cc 70cc 90cc 110cc 125cc 4 stroke Motorcycle ATV Quad Scooter Go KartPackage includes??1 Air Filter, 4 fuel filterWe provide 180 days money back guarrantee! Lifetime warranty against manufacturer defect!Replacement for: CB100, CB100N, CB125, CB125TD, CB400, CB400F, MBX50, MBX80, MTX50, MTX80 Replacement for Kawasaki: AE80(81-83), AE 80, AR80, KH250 Suzuki: GT125, GT185, GT200, GT200XS Replacement for Yamaha: DT80, DT80MX(81-83), RD80, RD80L, RD80C(82), RD125, RD200(75-81) Replacement for PGO: All 50cc and 90cc Replacement for Scooters: All 50cc Kymco: WIN50, HEROISM 50, SNIPER 50, BET 50, TOP BOY 50, PEOPLE 50, SPACER 50, COBRA 50, CROSS 50 SYM: FIDDLE, DIO Replacement for: Dio 50, Shadow 50 Replacement for Yamaha: Aerox, Breeze, BWS Bump, BWS next generation, CR 50Z, Jog, Joger, NEO’s, Vino, Zest Replacement for Aprilia: Area 51, Sonic, SR50 WWW, SR 50 Lc About usPlease check the model number carefully before