Why are my pads shredding my rims all of a sudden?

I've never had this issue before, but this winter is killing my rims.
The blocks seem to be picking up tiny metallic lumps (presumably of the braking surface) every ride. I pick the pads clean with the tip of a scalpel and within 2 or 3 uses of the brakes, the wince-inducing noise of metal on metal is back.
Are my rims falling apart? Or are my pads over-worn?
Cheers
The blocks seem to be picking up tiny metallic lumps (presumably of the braking surface) every ride. I pick the pads clean with the tip of a scalpel and within 2 or 3 uses of the brakes, the wince-inducing noise of metal on metal is back.
Are my rims falling apart? Or are my pads over-worn?
Cheers
0
Posts
I lightly sand mine clean every few rides.
Toeing them in slightly so the rear edge of the pad touches first will help keep the main contact area clean.
Boardman FS Pro
When my original set wore out in the wet last winter their wear seemed to accelerate near the end in a kind of vicious cycle. That could also explain why you're having so many metal splinters as well.
Unfortunately any rim will take a beating in the weather we're having at the moment because of all the muck on the roads- it's quite depressing when you can litter ally feel them being ground away- that's why I'm only using R501's at the mo!
I have another front wheel (that came with the bike) which i slung on on saturday, but the grinding came back after a few miles.
Thet are/were stock Shimano pads, would replacing with a specific wet/winter pad (kool stop salmon etc) be a route worth exploring?
They are Bontrager Race Lite's. Really nice set of wheels so I don't want to wreck them. I'm starting to understand this 'winter wheels' business now.
I've always adjusted mine so the leading edge touches first!
Doing them the opposite way means the side of the pads will kick much of the abrasive silt off the rims, so each braking action will clean the rims. The braking performance seems almost the same.
Boardman FS Pro
Stretching & Workout Vids
All you can do is clean your wheels after a ride, maybe look for softer brake pads.
@diy - they sort of did invent glue for rims, it was the ceramic [open pro's] braking surface rims. They have lovers & haters. I'm banned from talking about them by my mates cos I gleefully remind them how many years old mine are! No winter grinding whatever the conditions & braking is really predictable.Ceramic specific brake pads last a year or more [have a summer bike as well now], & just had to put in the second replacement bearing set into the Hope's they're laced on.
The extra cost put people off & they don't make them any more.
Nice bit of logic in that, next time I adjust them I'll give that a try.
Glad I've got a diskie though (CX Team), even if it weighs a ton.
I'm genuinely surprised Farsports or the like haven't yet come out with rims and spokes to match popular factory wheelsets in general. It seems like the most open of open goals to me.
Kool Stop pads have a concave profile for this very purpose. They are shaped so that the rear edge of the pad hits the rim first.
N+1
Colnago
Cervelo
Campagnolo
Colnago
Cervelo
Campagnolo
N+1
PP