They're here....

Delish

Well-Known Member
...the onslaught of mass-market disc brake CX frames that is.

I know road lever compatible brakes have a long way to go but who's planning on making the switch? and when? and why (or why not)?

9628


The new CruX Disc looks like a solid first effort--affordable, popular geometry, 135mm rear spacing so you can use the 29er tubeless wheels you already have (of course this means you can't use your expensive crabon fibre toobies for both road and cx seasons).

Discuss.
 
No, but just because I bought a nice spiffy cross bike last year.

After riding the cx bike in the rain for over 7 hours this week, even with the green swissstop pads, I'd certainly welcome disc brakes over those.
 
I'm in the market

I'm in the market for a cross bike, and I'm very interested in the disk option.

I love the crux...I just wish the disk frame looked cooler. All the other Crux frames look really nice. I just don't dig the gray. I know it's stupid, but if your going to drop over $2k on a bike, it's nice if you think it looks cool. I think they just made this one plain old ugly...

given that nationals will require disk this year (since it's in january 2012), I think we might see a lot of other companies doing a late/early release (depends on your perspective I suppose) of disk bikes. I'd love to see a CAADX or superX disk...

I'm temped to hold out, but that doesn't help me for this season :cry:

kudos to specialized for getting one out early, though. that full carbon fork sounds like a nice piece. it'll be interesting to see how standardization goes...
 
UCI rules...

We might need Fox News to do some fact checking but I think that disc brakes are allowed at nationals not required.

this article in CXmag certainly makes it sound required (maybe only for elite/pros?).
http://www.cxmagazine.com/uci-to-mandate-disc-brakes-cyclocross-regulate-gloves-and-shoes-in-2012

Here's a little quote:

"...the UCI has made the surprising off-season decision to mandate the use of them at all UCI-sanctioned cyclocross races, effective January 1, 2012"

and this one:
"The new brake standard is perhaps the most difficult for racers to comply with. Equipment makers are hastily assembling their engineering teams to redesign frames to handle disc brakes in time to field sponsored teams in the fall so they won’t have to switch bikes just before January’s important races."
 
i predict you're wife will have a baby before you get the new disc brake cx frame.
 
buggers....

Damn it, that article almost got me again... 🙂 (check the article's date of publication)

Ah...those buggers. I didn't look at the comments when I first saw it. I did think the whole thing sounded a bit crazy, even for the UCI...
 
Very funny, coulda been in theonion.com. I will look for something April again.
I agree, the bike is drab unless covered in mud.
nipper
 
The next CX frame I buy will be with disc brakes. It may even be a Crux. Its pretty obvious this is the next step.

And riding my CX bike when the weather is really shitty wiill be much more comfortable.
 
I'm 100% for disc brakes for cross.
That being said, I will still be on canti's as I just got a Raleigh RCX and don't plan on changing anytime soon.

I think the disc crux is a sweet looking bike, fwiw.
 
. that full carbon fork sounds like a nice piece. it'll be interesting to see how standardization goes...

I wonder if anybody will be rocking a mullet (disc party in the front, canti in the rear) with this fork until the rear standard gets hammered down.

i predict you're wife will have a baby before you get the new disc brake cx frame.
My prediction is that said baby will be riding a disc brake cx frame before I am.
 
I too am 100% for discs in cross. Cantis are just friggin useless. I used Cantis back when they were on MTBs. I immediately went to V-Brakes when they came out and never looked back. That is, until Cyclocross.

Yeah, one of the shop wrenches will come here and claim he can get his to work like magic. He leaves out the part about having to spend 4 hours setting them up and having to adjust them after every race. I'll take a weight penalty of discs, set my brakes up once, and forget about them.

That being said, I'll wait for more options and for the industry to decide if the standard is going to be 135 or 130. I was smart in not jumping on the carbon cross bandwagen last year. I went with a budget Al frame instead knowing that it was not going to be around for long. If I was smart, I would have ordered those new tubular wheels with disc hubs. I just kicked myself for not thinking to do that.
 
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I like my canti brakes thank you very much. But disk brakes would be pretty awesome I can picture a cute little 120mm rotor. 😀

I too would have thought that 2012 line ups would have a disk option in every line. I wonder if it will take longer than expected. Shimano just released some snazzy new canti's...nuttin about disk brakes.:hmmm:
 
I'll chime in and be that mechanic. I honestly don't have an issue with cantis at all. Cantis are 100% where it's at. Highly doubt you'll catch any of the fast guys on discs. Not to mention, who on earth says discs are any kind of advantage anyway? I remember replacing my pads after every single XC race during the rain season of '09. And I had to rebuild my caliper once a month that year. I'm on 3 seasons of cross with the same brakes and pads. So durability and increased pad life isn't increased going to discs. Also the fact that you can only run Avid mechanicals at this point is big turn-off. The hydro adapter still isn't a viable solution until they can mount it without using 40mm of the fork steerer. That's not an option for us under 6 feet tall.

Point #2. It's takes a minimal amount of braking force to overcome the traction that a 32c tire has. You should be able to lock up a CX tire with ANY canti brake out there. I'd imagine more times than not what people feel as their brake not grabbing is actually their wheel being locked-up and sliding:hmmm:

-Jim.
 
I'll chime in and be that mechanic. I honestly don't have an issue with cantis at all. Cantis are 100% where it's at. Highly doubt you'll catch any of the fast guys on discs. Not to mention, who on earth says discs are any kind of advantage anyway? I remember replacing my pads after every single XC race during the rain season of '09. And I had to rebuild my caliper once a month that year. I'm on 3 seasons of cross with the same brakes and pads. So durability and increased pad life isn't increased going to discs. Also the fact that you can only run Avid mechanicals at this point is big turn-off. The hydro adapter still isn't a viable solution until they can mount it without using 40mm of the fork steerer. That's not an option for us under 6 feet tall.

Point #2. It's takes a minimal amount of braking force to overcome the traction that a 32c tire has. You should be able to lock up a CX tire with ANY canti brake out there. I'd imagine more times than not what people feel as their brake not grabbing is actually their wheel being locked-up and sliding:hmmm:

-Jim.

So what i think the advantages of a disk brake are two fold
1: not having shit clogged up between your brake and a wheel slowing you down and the noise of it dragging annoying the piss out of you.

2: wheels will be a bit more durable as a result of said shit not being clogged up between you brake and wheel then being smashed into your brake track.

at the moment weight savings is not a consideration. Cantis are pretty freaking light. If you think about hydraulic you are adding more grams. I actually like the bb7. its a good brake and its easy to set up.

you dont need that much stopping power in cross. i have never wished for more. just me tho
 
They kinda just look dumb on a cross bike too. It will take awhile for everything get going as there are so few options for wheels especially. And if you are going to run a 120 rotor, yo are going to loss some stopping power and probably equal what cantis would be. No mucking up around the seat stay is A big deal though
 
Interbike..

In 2 weeks the big bike show goes down in Vegas.

When (or if) either shimano or Sram unveil a hydraulic brake that is activated by a Brake/Shifter lever things will change really fast.

I have heard rumblings about a new group from Sram and my hope is that it is what I just described.

I have also heard that a Di2 lever has plenty of room inside it for a master cylinder (Yeah)!

The very few disc brake offerings out there this season point to the forthcoming release of such a concept.

I am voting for 135mm so the 29er wheels out there already can be used for cross. It is so much easier to adopt an existing hub standard w/ countless rear hub options.

Cantis sucked on mt bikes. They still suck on Cross bikes. Pros will run discs Why wouldn't they?? Forget about stopping.. Think about the lack of mud drag in the slop. Less drag. That is reason enough. They will run discs.

Consider that Sram owns Zipp. How happy will the zipp engineers be when they can build a Tubular rim w/o a brake track!! This is such an obvious direction. I am sure that things get much easier when you don't have to deal w/ the heat and overall impact braking has on a rim. Take that hassle out of a wheelset and things get better.. and maybe even more Aero on the road...

my .02
 
Jim, didn't you have a broken shoulder the last three years? And you don't need brakes cause you still do tripod turns. 😀

The pros won't use them because all they have to do is ride them and then hand it to a wrench. They also get a clean bike every lap on those sloppy days. It is the amateurs who will embrace the discs.

I ran new tires in practices last week. Impressive traction with the Griffos. So much so that I could not lock up my rear wheel at Otto or Chimney rock. (rims may have been wet though) At a few points, I just pulled till my hands hurt and the wheel continued to rotate. I've tried a new canti each season trying to find something better and they all suck including blingy stuff like Paul which everyone raves about.

Oh yeah, I'm also throwing away another rear Mavic wheel because the braking surface of the rim is worn thin. I've had one fail in the past while pumping up a tire. That wear is only seen when using cantis. V-Brakes don't do that. It is the arching motion of the canti arms that cause the pad to dig into the rim. Back in the MTB days, I used ceramic rims to stop the wear.

I have BB7s on a road tandem that stop on a dime with the new Ultegra levers. The cable pull of the new Shimano stuff pairs up nicely with the mechanical discs.

The argument about needing them in cross was answered by the same trend in MTB. Many said you didn't NEED them. No you don't...but being able to tap the brakes and get full power with little interference from course conditions is pretty cool. Later and more consistent braking means more speed in corners. C'Mon Jim, you are an auto-crosser. You have to recognize the value in that.

I will take better braking with less effort, less wear on the rims, less mud clog, ability to brake later into turns, fewer bike changes required, fork chatter is no longer a concern, less maintenance required, etc. You guys can have your weight loss. I'll skip the pre-race waffles and we'll be even.
 
Mr. Dog brings up a valid point on the rear hub spacing. Mike has a few of the Crux Disc framesets coming in for his Sram fleet and there's not a single person at Specialized that can answer what hub spacing it uses. Obviously, there are no 130mm disc hubs on the market so we'd have to assume they'll all be 135. Unless of course Specialized has a hub made specifically for that bike, which is entirely possible.

I still think Sram will be the one to pull the trigger. Shimano just released a CX specific groupset and if they were going disc, it'd be there already. Plus Nuggles was in today and he has a hard time NOT spilling the beans, especially when he uses the stand right next to mine to install his prototype stuff:hmmm:

Hold to my original statement. Cantis rule!! Bring back PURPLE!!

-Jim.
 
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