Yet another brake question

dodgyknees
dodgyknees Posts: 148
edited December 2008 in MTB workshop & tech
Recently replaced the rear Tektro IO brakes with Avid BB7 mechanical discs.

Have been pleased with the better braking performance of the BB7's but in very wet and muddy conditions they still start to fade badly. It's not so much that the pads are wearing out, as when I check them there is plenty of pad left. But the lever pressure all but disappears and I have to keep adjusting the pad spacing on the brake caliper thoughout the ride.

Is this normal behaviour?

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