Off-road in pissing November rain. Rear pads from new to metal in 60 miles, with scarcely a few dabs each day. Deore LX. Grrr..
It's the wet time of year when the Hampshire grit always does it to me. What is so annoying is that my Deore LX wears pads out not through use, but seemingly because negligible clearance allows intervening grit to do the damage during "cruise".
A coating of wet grit on the piston seals, and between pads and caliper sides (there is lots of wet grit here), and straightaway they won't retract like they do when spotlessly clean. 60 miles later, pads are toast.
Isn't the problem that there is apparently nothing on these systems to define the pad clearance? - There are no springs, only disc eccentricity to push the pistons out, and perhaps a tiny bit of back pressure from the rubber membrane in the reservoir?
If someone thinks that's wrong, then please do tell what does define pad clearance and draw the pistons back.- Do you have a cross-section of Deore LX master cylinder to explain?
Nobody please tell me to "bed my pads in" - I won't reply..
and it does seem to be one major factor affecting pad wear
