Hihgly reliable bike frame,suitable for anyone , of good price and better quality Princess bicycle frameBrand: Russian STARKOrigin: Shenzhen,ChinaMaterials: Alloy 6061 T4/T6Specification : MTB frame 26'15/16/17/18Size : H/T=34MM External Headsets S/T Seatpost=27.2MM bicycle frame bike parts spares