Hi All, Ive been cycling for a while, mostly off road, but I am now looking for a proper road bike. I have a trek hybrid, 7300 FX, that I got from my brother to try on the road, but my lower back starts to hurt after a while. I did some googling and it seems my setup is incorrect. I am 1.73m and according to a couple of shops I need a 52 or a 53 frame. Now the question, can I get a 54, shorten the stem and lower the seat to basically "make" the frame fit? The guys at Tour de Frans in Boksburg suggested this, but it sounds to me like a bad idea. Should I rather save my cash cycle on the road with my MTB (a Trek x-caliber 7)? I battle to keep up with the roadies ( obviously). What should I look for when getting a 2nd hand road bike? It was suggested that I fork out a bit more for a 105 groupset? Is it worth it? I considered buying a frame from chain reaction cycles but it seems thats going to coast a pretty penny. apologies for all the questions
