Charlie, if i can get my monkey close to the weight of your SIR9 i shall be a happy bunny. I might be wrong getting sunstroke and all that but is your 9 set up with 33×17 as i recall it went uphill quite well, well better than i can go uphill on a strange bike.
Aidan, this brutal bit, are we talking brutal like the fort william world cup downhill track, or brutal like lots of climbing in 30o heat 🙂