Thank you VeloDog and dedhed I have A LOT to learn. Right now I have a Cannondale CAADX 105 and I love it but in local riding groups most have road bikes( and experience)...I have a harder time keeping up I can comfortably ride at 15mph, but my 15mph seems like nothing when Im next to a road bike..I know I can change out tires/rims but Im not inclined to tinker with those components until I know how (i.e be shown by someone who knows).....I was drawn to the avail but am also interested in Cannondale's, Synapse, CAAD 8 or 10 with 105 compenents.....Should I just ride them all and decide?