Bicycle with theftproof saddle

The utility model discloses a bicycle with theftproof saddle, including the driving license body by oneself, fix seat pipe on the proper motion driving license body, insert and establish present intraductal seat pole and the fixed cushion that sets up present rod end portion, be provided with the seat pipe clamp that is used for the fixing base pole on the seat pipe, its technical scheme main points are, the seat pipe is including first seat pipe and second seat pipe, first seat external diameter of pipe is less than second seat bore of pipe and partially stretches into the second seat intraductally, the tip arc of second seat pipe carries out the transition to the outer wall fixed connection who manages with first seat, first seat pipe be located second seat pipe one end be provided withthe gag lever post of the pipe wall that runs through second seat pipe, the radial setting that the gag lever post was managed along first seat, length direction along the seat pole on the seat pole is provided with the guide