the seat clamp on the lower end models is seriously a pain in the ass..can't hold my carbon seat post properly..recently i just swapped a turtle neck clamp onto my vitesse..and solves my problem..

i use my bike for leisure riding and also touring..most of the time i ride with road bikes and hybrids..i'm very happy with my bike..although the sram dual-drive give me problem occasionally..

my modded vitesse: