sorry don't have a pic.....i just combined aluminum tubes and attached one wheel...one the combined tubes i am going to put medium size suitcase.....the lebgth is about 70-80 com including wheel. so because its single wheel...i need double mount....i am planning to install hitch about 5-10 cm from the end of cassete. here is a link of my bike.......http://www.bikeforums.net/showthread...............so if u sea where is cervelo writen....i want to mount hitch between first letter 'C' and end of last cog.......i am searching for easy mount.....i am planing to travel and stay in hotels...so i want easy hitch to mount and unmount quickly the trailer.....