El gringo, I believe you have Ulterga wheels like I had(before hitting a pothole). My ultegra's only lasted a little over 18 months (around 8k). I put it down to using the wrong brake blocks, but reading posts on't internet, there seems to be a common thread, saludos.
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PaulW
Malman
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@Chainreaction
Hi Folks, a gentle reminder for those brave enough to have kept riding through the gritty
sludge coating the country lanes recently.
The gritty sludge's abrasiveness rapidly wears down both brake blocks and in my case wheel
rims. Worth checking both .