Boardman HT pro 2011 chain rub

togg Posts: 80
edited September 2011 in MTB beginners
I keep getting chain rub, when in the large front ring and smallest rear rings, ie the hardest gears to pedal in.

should I not be able to use the last 3 gears, can anyone show me on this bike in pictures or video what to adjust to cure this problem, its only minor but I can feel and just about hear it rubbing.

Oh and the front right hand side shifter broke after 2 weeks...been replaced by halfords