Check the listing for details. Orbea Maia Road Bike Frame. Condition: Used. Listed at 400.00 USD. Orbea Maia Road Bike Frame. Used in good shape. Columbus Starship tubing - 48cm sitting around 850gr Excellent road feel and control Made in the Basque country back in the dayEffective top tube measures out at 53cm c-t-c. So, from the measurements I've found, this frame is a 51cm. Here are the measurements: Size474951535557601 - Seat Tube (C-T)4404604805005205405702 - Top Tube (EFF)5105235355485605765903 - Head Tube1051131301481681862134 - Chainstay4085 - BB Height2672672672692692692696 - BB Drop727272707070707 - Wheelbase972976980981991100210168 - Head Angle71º71.5º72.2º72.8º73º73.2º73.2º9 - Seat Angle74.5º74º73.7º73.5º73.5º73.2º73.2º10 - Standover73574776678780782585111 - Reach36737237738238839540112 - Stack51352254055957959762313 - Fork Length370Rake48484843434343