cheers for the responses. loving the merida and the ibis, but having discussed yesterdays ride with some other riding pals, i don’t think its the frame directly, i’ve had this back pain twice and its not in the base of my back, its in the middle and across my shoulders, and the two times i’ve had the pain its been on different bikes, the only commonality of both riding trips was i used a camelbak for those 2 rides, never used one before. i’m wondering weather i’ve got the straps too tight and thats whats causing me back pain? i’ve also shortened the cockpit on the scandal on the seat rails which im going to try and move back, and im going to check the setup of my forks as i was also getting mad hand pump at the bottom of some descents yesterday too.