TJ wins on discs

Especially for light weight issues concerning cyclocross / touring bikes & parts.

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vcnz
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Location: The Netherlands

by vcnz

limba wrote:Eventually, we'll have to buy them. Try finding a mtn.bike frame with v-brake mounts. Some companies don't even make any 26" mtn.bikes anymore! You have to buy a 29"er. In five years it's all going to be discs. I bet Ridley (king of Euro cross) has a disc bike next year and when Dura-Ace discs happen it's over for cantis.

Bump this thread in 2017 and we'll see how many manufacturers still have cantis mounts on their high end frames. I bet it's zero.

MTB is a different story. What happened for mtb will not in cyclocross for some simple reasons:

1) There are mtb specific groups since ever.
2) Disk brakes in mtb are a real need and they were very well welcomed by 99% of bikers (the market)
3) There is a huge difference between MTB and Cyclocross in terms of popularity, therefore the return of investment in developing disk brakes for mtb was guaranteed, that's not the case for cyclocross

Cyclocross components are inherited from road. Do you really think Shimano will develop an hydraulic DuraAce version for cyclocross ?
It would be a huge investment for a very very small market. I don't think Shimano guys are so stupid.
Even if 100% of cx riders all around the world would use disk brakes, it's still a very small market

If you have any doubt on this, please consider Shimano didn't even develop a serious cyclocross specific cantilever brake in all these years.....or... they didn't even put a DuraAce 46T chainring in their catalog etc. as just a few examples to understand how much Shimano is interested in the Cyclocross market.

You will never see an hydraulic version of DuraAce for cyclocross, unless they will do it for the road bikes....but probably this will not happen in the next 300 years

Last but not least, don't forget shifters are integrated with brakes, this leaves no chances to after-market products that could be developed by companies that have been doing good things for CX in terms of brake systems, like TRP etc.

limba
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by limba

I think eventually we will see discs on road bikes too. TRP said last year that they have some sort of disc idea being developed.

You're getting them whether you want them or not.

by Weenie


andyp
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Joined: Thu Nov 22, 2007 5:58 pm
Location: London

by andyp

@vcnz - how many cyclocross bikes sold are ever actually raced? Do not underestimate the riders that uses a cross bike for commuting, or a mix of off road and on road riding as they are the ones driving the market.

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euan
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by euan

andyp wrote:@vcnz - how many cyclocross bikes sold are ever actually raced? Do not underestimate the riders that uses a cross bike for commuting, or a mix of off road and on road riding as they are the ones driving the market.


also road racing /= the road bike market. bike manufacturers are seeing gains by ignoring UCI rules when designing frames for the tri market and they would look for similar expansion in the road market too.
"Step forward the climber and all those who worship at the altar of lightness" - R. Millar

blantonator
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Joined: Sat Oct 23, 2010 8:36 pm

by blantonator

Have you guys not seen SRAM is doing hydraulic rim and disk brakes and STI levers for their 2012 red road group?

limba
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Joined: Tue Dec 16, 2003 4:24 am

by limba

Yeah but Sram sucks. :mrgreen:

You couldn't use their Red cassette because it filled with mud. The new cassette should have fixed that problem.... the front derailleur cage needed to be downgraded from ti to steel to work for cross and their mtn bike disc brakes have sucked for over ten years. When Shimano makes a disc brake that's when everyone will want them.

Frans
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Location: Bow of a Farr 40

by Frans

"""Those that think a lack of contact patch have obviously failed to consider an ABS (antilock Brake System) that will fix the issue of hopelessly skidding. You will be able to program your brakes for each specific race. Naturally these will need to be ceramic. They will also need to be fully hydraulic with tubes running inside the bike frame. As we are going hydraulic anyway we can also use it for front and rear suspension that can also raise and lower the bike as the terrain dictates. This could be done using a computer chip that could adjust itself on the fly. As we are running a computer it may as well adjust tire air pressure on the fly. This could be tied into the local weather report to accommodate weather conditions. This system could also turn on and adjust your built in lighting system. I could go on forever"""

Come on, don't stop there, we'll only have 1 'working' brake lever in the future with the other being a spring-weighted dummy. We'll only need 1 b/c the computer will use the ABS sensors to determine which wheel has more traction and deliver braking power to that wheel a la skid control or a 4WD diff on a WRC car. If the ABS reacts fast enuf we'll never endo again b/c the brake will cut out as wheel speed approaches zero. I would not want to be the test mule for such a set up. Imagine trusting your braking to a battery?

jeronimo
Posts: 21
Joined: Sat Feb 14, 2009 11:14 pm

by jeronimo

Disc brakes making cross bikes too heavy?

Think again...

http://velonews.competitor.com/2011/10/ ... -78-pounds

Image

Super_fast
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Joined: Tue Nov 01, 2005 9:36 am

by Super_fast

Think again, why are none of the European pro's riding with disc brakes?

volkerbicycles
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Location: Kansas City, MO
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by volkerbicycles

I was there, and listening to Johnson descend mt. krumpet was unbearable. Loudest squealing I have heard.

I worked the pit for my friend who raced earlier in the day in the same mud. He had a ss 29er with bb7s, I had to adjust the pads every lap because the water/mud was wearing them down so fast. By the end of the race he had no pad left to stop. Good thing he had a pit bike with cantis.

My cx bike is 14lbs, 16.78 sounds like a lot.
Britton
volkerbicycles.com

vcnz
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Joined: Thu Jan 11, 2007 3:48 pm
Location: The Netherlands

by vcnz

jeronimo wrote:Disc brakes making cross bikes too heavy?

Think again...

http://velonews.competitor.com/2011/10/ ... -78-pounds" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;


...still much heavier than same bike with canti brakes

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maddog 2
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Location: Lancaster, UK

by maddog 2

but it's heavier mainly because the technology for road/CX discs is old, not because discs are a lot heavier per se.

Once the kit catches up then you'll see lightweight disc setups. Maybe not as light as cantis I admit, but there are clear benefits that will make up for a small weight increase. Plenty of parts are slightly heavier than the ultimate lightweight kit (Di2, clincher tyres/rims, two-ring setups...) but the benefits are often worth the price/weight.

OCCP
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by OCCP

The new OCCP Step C Disk .
Complete 6,8kg.
Attachments
OCCP-AX_light.JPG

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maddog 2
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by maddog 2

oh yes 8)

now we just need some dedicated road bikes like that :wink:

OCCP
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by OCCP

My own bike with the new shimano ultegra di2. Frame size 58cm.Weight complete 7,2 kg with mono chainring and 7,35kg with double chainwheels. I'm sure that disk bikes are the future in cyclocross. Also by the pro riders.
Attachments
Marketingrd_OCCP_1.JPG

by Weenie


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