bobzmyunkle
Über Member
Yes, if this thread is anything to go by, they appear to be both overly complex and extremely dangerous.
Failed Disc
- Thread starter Marchrider
- Start date
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fossyant
Ride It Like You Stole It!
- Location
- South Manchester
Wrong. Much easier to live with than canti brakes, more powerful. Ugly on a road bike mind, but my MTB's Guide RS brakes have been trouble free. Easy to bleed, easy to change pads and they don't half stop. This is definitely where disks are needed on MTB's. Disks also make a lot of sense for commuting, cutting rim wear.
bobzmyunkle
Über Member
Sorry, please note the caveat on my post.
Ming the Merciless
There is no mercy
- Location
- Inside my skull
Match the rider in that case 😂
Dogtrousers
Kilometre nibbler
I guess I'll just have to take your word for that.
If I were buying a bike now I'd consider them, but from reading on here they do seem to be incredibly squealy and finicky, requiring special sanding and cleaning of discs, bleeding, extremely accurate alignment, subject to hard-to-diagnose problems and so on.
But I'm speaking from a position of ignorance, and as my frame isn't compatible with discs, it's likely to stay that way for the time being unless my bike gets broken or nicked or something.
Yellow Saddle
Guru
- Location
- Loch side.
If you want mystique and complication, look no further than calipers, cantis or Vs. Cosine error (pad dive) parallax error, straddle wire angles, V-pipe wear, insufficient openeing gaps, pad fade, wet performance, rim gouging, pad pick-up, uneven wear (as on dual-pivots), varying mechanical advantage...etc etc etc.
Discs are the dog's bollocks.
Ming the Merciless
There is no mercy
- Location
- Inside my skull
But you don’t know the denominator . There are millions of hydraulic disc brakes in use, and how many posts do you see? No one bothers posting about their disc brakes that just work.
Dogtrousers
Kilometre nibbler
I have dual pivot brakes so I avoid all that straddle wire malarkey. Rim wear is a thing to keep an eye on, I agree.
A fair point.
But it's all hypothetical anyway as I couldn't fit them to my bike if I wanted to, and I'm not going to buy a whole new bike out of curiosity about a different kind of brake.
bobzmyunkle
Über Member
I've got a rim brake bike and a disc brake bike. Is one more onerous to maintain than the other? Not really. I just have to remember which I'm riding when I go downhill in the rain.
If I bought again, I'd buy disc (assuming the choice was there).
Now, if we move on to threading cables through the head tube, I'm sure I can come up with a much stronger opinion.
OP
OP
Marchrider
Über Member
first bit of the puzzle solved, it is 180 front, 160 rear
he had picked up a new 160 and you can see from the fit, its a bit short - been out on it and says its working fine, but will get a 180 sometime next week
even I wouldn't ride that, it could do something unexpected and suddenly lock up
How long do discs typically last ? the one that failed was new last may (9 months) and was down to 1.1 - 1.3 thickness when it collapsed
he will do a big mileage (never counts so no idea mileage) and i'm sure he will race everyone on the commute, he's super fit super powerful, so probably a lot of hard braking, and i doubt there will be much in the way of maintenance or cleaning
apparently the pads were good, i wondered if they had been down to the rivets (i doubt they use rivets but i like than phrase)
I'm sure that shiny section shows its been out and tested
he had picked up a new 160 and you can see from the fit, its a bit short - been out on it and says its working fine, but will get a 180 sometime next week
even I wouldn't ride that, it could do something unexpected and suddenly lock upHow long do discs typically last ? the one that failed was new last may (9 months) and was down to 1.1 - 1.3 thickness when it collapsed
he will do a big mileage (never counts so no idea mileage) and i'm sure he will race everyone on the commute, he's super fit super powerful, so probably a lot of hard braking, and i doubt there will be much in the way of maintenance or cleaning
apparently the pads were good, i wondered if they had been down to the rivets (i doubt they use rivets but i like than phrase)
I'm sure that shiny section shows its been out and tested
FishFright
More wheels than sense
first bit of the puzzle solved, it is 180 front, 160 rear
he had picked up a new 160 and you can see from the fit, its a bit short - been out on it and says its working fine, but will get a 180 sometime next week
How long do discs typically last ? the one that failed was new last may (9 months) and was down to 1.1 - 1.3 thickness when it collapsed
he will do a big mileage (never counts so no idea mileage) and i'm sure he will race everyone on the commute, he's super fit super powerful, so probably a lot of hard braking, and i doubt there will be much in the way of maintenance or cleaning
apparently the pads were good, i wondered if they had been down to the rivets (i doubt they use rivets but i like than phrase)
View attachment 763179
I'm sure that shiny section shows its been out and tested
That one looks set up oppositely badly to the one in the OP.
The pads should cover pretty much all of the braking service .
Maybe it's the wrong size...
Yellow Saddle
Guru
- Location
- Loch side.
Yeah, but not without profanity. The devil's own work that.
FishFright
More wheels than sense
It needs spacers removing or a smaller adaptor plus spacers.
Often happens when adapting IS mount's to Post Mount brakes.
