Yup, always named my bikes. Not sure why, but I assume it's because I'd heard people do it for their cars. Some of the bikes have gone to the great garage in the sky now, but names and reasons below, there's a bit of a theme.
Ice - Cube HPC - Icecube....
Alan - Giant Defy - So named because on a triathlon I hadn't tightened the seat post enough (only got the bike a few days before) and mid triathlon the seat dropped down to the frame.......6'4" guy cycling with knees by his ears was funny and I was asking anyone for an allen key.
Dice - Specialised Crosstail- It was black and white and not to dissimilar to Ice, so just added a D.
Tino - Wilier GTR - Bought him on valentines day
Sadie - Giant Revolt - Bloody D-Post saddle stems......must be a relative of Alan's as again the seat dropped several times when I first got her so Sadie - short for saddle.