This frame is in great condition. The seat tube is 18. It fits 26 wheels, 9x135mm on the rear. It has a straight headtube. The fox float RP2 shock is in good condition but may benefit from a service as it has sat for a while. The headset is missing the crown race. Please note that the dispatch on this will be slower than small items due to certain post office’s not accepting our large parcelforce packages. Please feel free to reach out before purchasing and I will be happy to let you know when it will be dispatched.