Disc Brakes for Pro Peloton

I am just not prepared to
I am just not prepared to spend over £600 for the same bike that is also a kilo heavier, my new bike is for dry weather only so I don’t feel I need discs. just like 29er wheels, it’s another fad to see us buy more stuff we didn’t know we needed.

MTB disc brakes have their issues, boiling the oil on long fast descents, pad wear can be high in the right conditions. They will need sanding when they get contaminated with road film, grit and substances. They are not the easiest thing to bleed either.

You can also go past the braking power/limits of discs, anyone who may have ridden down the radio mast climb near Marlborough at high speed will know that discs have their limits.

mrmo wrote:jacknorell

mrmo wrote:

jacknorell wrote:

Yes, Ultegra & Dura-Ace or Record or whatever calipers are pretty good in the dry, no argument. But in the wet, with the grit, with the oil & diesel from road muck on the rims… ugh :(

And when the oil and diesel from the roads gets on the discs and into the pads???

I hadn’t thought about this before, but Is there actually a potential issue with pad contamination? I know from experience that it doesn’t take much oil/lube/gt85 to screw up the discs on the mtb. Nothing like the gentle howl of a set of discs, assuming they work at all!, when your riding cheeky trails to ruin the ride.

Actually, yes, there is. There’s a lot less road muck that reach the pads than the entire rim wall though, so a rim brake will be affected so very much more quickly. I’ve had rims go from clean to sliiiiiidey in a few hours 🙁

But oils etc do build up over months and makes the brakes a bit less effective. New pads after a winter seems to be my frequency, they’re getting a bit less power now which with new organic pads will be sorted.

Quick fix is to get some clean wet sand or grit and chuck onto the disc caliper and disc, same as for MTBs.

PaulBox wrote:If they are

PaulBox wrote:

If they are approved for the pro’s we’ll all be riding them in a few years. This is the reason I currently can’t pull the trigger on a new bike. I’d happily buy another with normal brakes, but will that limit my options on replacement wheels in three years time?

Try buying a rim brake wheel for a mtb these days, yes you can, but not any of the best models.

if you can still get square tapered BBs I am sure you will be able to get rimmed brake parts in three years time.

Simon E wrote:portec wrote:He

Simon E wrote:

portec wrote:

He only asked a question. No need to resort to personal abuse.

That kind of sh*t seriously devalues their contribution to the point where I don’t bother reading anything else they say.

WTF ? As the person who wrote the question can I now ask you what on earth you thought I was getting at and why the fuck you think it was some ‘kind of sh*t’ that ‘seriously devalues [my] contribution’. Frankly I don’t care whether or not you ‘don’t bother reading anything else [I] say’ but it beggars belief you found something in there that let you know my position on discs one way or the other.

Simon E wrote:

ianrobo wrote:

Who knows in 3/4 years time what the situation will be then ?

With that kind of thinking you could put off many purchases, possibly indefinitely, and never experience the benefit.

Even if a new caliper mounting system is established current brake types will still be replaceable if needed. I’m a true tightwad but I’d stump up and pay the extra for disc as the benefits outweigh the initial cost.

So would I, I happen to be pro-disc due to my experiences with them on and off road. I just wanted to get the OP to clarify why they didn’t like discs as I was thinking it had little to do with a realistic test in mixed conditions – which is sort of the point of discs over rim brakes. That said, if they say they just don’t like them, that’s fine too, it’s their bike and their money.

If they are approved for the
If they are approved for the pro’s we’ll all be riding them in a few years. This is the reason I currently can’t pull the trigger on a new bike. I’d happily buy another with normal brakes, but will that limit my options on replacement wheels in three years time?

Try buying a rim brake wheel for a mtb these days, yes you can, but not any of the best models.

I think the main thing is
I think the main thing is that we need a definitive rear spacing measurement and disc diameter otherwise you’ll be locked to certain makers due to differing standard just look at the amount of bb sizes

new stuff, new standard
new stuff, new standard (flat mount !), more profit … it’ll happen, but not on my dole
cheque ;), so deal with it.
I’d love some but as neither of my frames are disc ready then I’m stuck in the dark
ages of rim brakes.