PLASTIC GAS Tank CAP CONDITION: Brand New Description: ID: 40MM(1.6") approx. with thread as picture showing OD of cap: 53MM(2") approx It fits most 50cc 70cc 90cc 110cc Kids ATVs, Such as TaoTao, Buyang, Coolsport, Kazuma, Sunl, Redcat, Eagle, JCL, Yamoto etc.