Hi all - A bit over a week ago I did my MOST (and passed woohoo) and I hired a CB250 for the day. I didn't find it very comfy and the vibration made my brain feel like it was bouncing around in my skull. Got a headache after that. Anyway - ever since the day after my test I've had lower back pain which is at times debilitating (couldn't sleep last night cause of pain) and I can't bend over or anything like that. I don't get back pain on the ZZR250 - could it be the CB250 that has caused this? I haven't done any heavy lifting or weird exercises. Does anyone else find this bike uncomfortable to ride?