That would be a first year (1992) model XO-2 in pearl white. The XO-2 was only made for two years and in limited numbers. In 1992 the XO-1 and XO-2 were the only two lugged models and both were made in Japan. In 92 the XO-2 had a moustache bar like the XO-1 but instead of aero levers and bar-end shifters it had grips, MTB style brakes and thumb shifters. Overall I think I prefer that look to the standard moustache with aero setup. The 92 was available in green and pearl white. In 1993 the XO-2 was the only model that came with drop bars (which I assume they did to counter-balance the negative press that the moustache bars were getting) and came in a purple color. All versions of the XO-2 were nice bikes with lugged triple butted Cro-Moly frames and decent Shimano equiment. I would size it more like a road bike even though it has 26" wheels. If it is a good price buy it quick and post some photos!