tetonrider

except when you flat in that race you think you can win and there is no rim-brake spare....

mattm

crits tho =]

spectastic

12 speed? oh god please no...

rim wear is a real thing, especially when it's wet. also, downhill braking in carbon rim brakes is scary AF for me. disc is so much better in that regard. i understand that's really only a small part of the whole picture. in most racing situations, rim brakes will work just fine. but considering most of my rides are training rides, and I live in pretty hilly terrain, I will gladly take any small weight or aero penalty, in order to be safer in my rides.

topflightpro

I haven't gone to 11-speed yet.

TheKillerPenguin

Anything that makes it easier to go up hills while either keeping an 11t or letting me switch back to a 53/39 is fine by me.

furiousferret

I think the next iteration of Cannondales (and probably a few other companies) will be disc only. I'm really leaning towards the new Cannondale Aero bike and unless the brakes are near the bottom bracket its going to be disc only.



I wish I could just fully convert and sell off my wheels while they still have value, but I can't really afford to replace my TT bike as well. Luckily I just have HED Jet 4's and Flo 60's, so its not like I have thousands invested.

spectastic

sweet, cannondale coming out with an aero road bike finally

furiousferret

bruh 12 more points and they'll give you one to test ride =]

spectastic

what's interesting is that they used a rim brake rim for a disc brake wheel..

Ttoc6

I don't think vision makes brake track-less wheels yet. They have some track wheels out there, but may not be using em for their road stuff yet.

furiousferret

I've kind of swayed towards being pro disc. Before I used to think they were dangerous sawblades of death and the pro's have a point, but after watching some videos of people trying to cut themselves and failing, it doesn't seem that bad. Even if I'm wrong, you could easily throw a lightweight cover on it.

I mean, if there was a real concern about safety, they'd do something about the sawblade that's in between the two pedals. Chainrings have been slicing riders for decades.

Ttoc6

That and you can cop some really good deals on new disc brake bikes if you know where to look.
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tetonrider

Getting cut is the least of the issues IMO.

Anyone deal with wheel swaps on 2 (or more) MTBs or 2 CX bikes?

spectastic

i think if the wheel follows the shimano standard, the discs should be centered every time. is this not the case?

even if the calipers rub, adjustment is a 5 minute job tops, no more time consuming than changing out pads on rim brakes.

first world problems right?

topflightpro

Presuming the rotors are actually straight, you don't need to bleed the brakes, and you don't accidentally grab the brake while there is not a rotor in there, then sure, it can be quick.

Flatballer

They should sell lockout devices you can install on the levers to prevent pulling them accidentally while the wheel is out. I guess they already have those tabs to put in the place of the disc though.

topflightpro

Yes. They do have those little plastic tabs, and I try to remember to use them every time I take the wheel out, especially if I am putting the bike on the roof rack - I don't need the wind pushing pressure on the brake lever while driving.

But, I can see someone trying to make a quick wheel change during a race accidentally grab or knock the brake while the wheel is removed -- and then it becomes a question of do you have another bike available?

Ygduf

what happens if you grab the brake without a rotor between the pads?

gsteinb

they stick

HTupolev

Hydraulic disc calipers "self adjust." When you squeeze and release the lever, the calipers back out a little from the maximum squeezed position they got to, not back to where they were before you squeezed the lever. This is kind of neat in that the brakes can do things like automatically tighten themselves as the brake pads wear and get thinner.

But if you squeeze them with no rotor in place, the two calipers come all the way together in the middle, and are basically stuck together until you pry the pads apart.

spectastic

i don't see how that's a problem with fast wheel changes. just don't touch the levers, and grab the handlebars by the tops instead of the hoods. if one's competent enough to do fast wheel changes, then one can do it without screwing up the pistons.

Ttoc6

I think the point is that it's more complicated than how current wheel changes work. Throw in having to get a through axle in/out (possibly with an allen key) and a disc brake wheel change is nearly always going to be slower and have higher risk than a qr rim brake.

I still think the positive out weigh the negatives here, but it's just a fact of how disc brakes will be implemented.

mattm

I know some manufacturers are pushing disc brakes in the pro peloton.. but it seems like slower wheel changes would be a deal breaker.

Ttoc6

This is the fastest I've seen, but it would mean ANOTHER standard having to be adopted.

Dave Mayer

The fastest QR I've seen is on my road bikes where you simply flip the lever and the wheel falls out. As Tullio Campagnolo designed it to work.

What is the point of any system where you have to waste time by spinning the QR lever?

As far as compatibility, I have at least 20 road wheels that are plug and play. You take one wheel out and install another with no fussing with brakes or gearing. Why would I want to waste time and frustration in having a system where it is difficult to swap wheels between bikes?