Originally Posted by Soody

I would also upgrade the front arms while you're at it. The ones i like are the shimano medium profile ones (like below), from altus to xt for about 5 years all basically the same, just different finishes, always seem to work really well. It's hard to say why different arms are good or not aside from flex and play and some say the wide-profile ones are stronger but i haven't found that and i would put it down to 'magic' and recommend you find some of these out of a parts bin and clean them and put new pads on and you will get good braking.