mark v's have iro rims to iro hubs (velocity fusion to velocity) [velocity fusion to formula]. The frameset is of good quality crmo, the parts are of good value. the drivetrain (cranks, cog, bb, etc) run smoothly.
note i have never owned* one although there are many that do on these forums - check the iro thread in the start here section.
*messed around with friend's
http://www.bikeforums.net/showthread...eed-Start-Here!