Audax bike: Which brakes?

[grumpyoldgit]

I see where you are with that,but ultimately the force on the road,against the forks,is the same,if the wheel wasnt in contact with the road your point would be valid.

 

[Zakalwe]

"The C59 Disc is based on the popular C59 chassis but Colnago have addressed the problem of the different forces disc brakes put on a frame by designing a completely new fork – chunkier and with the dropouts facing slightly forward to counteract the disc forces on the hub under braking load – and they’ve also beefed up the chain and seat stays. Unfortunately it shows. The C59 Disc is a solid platform. It has to be said that it’s veering towards the big-boned for a performance carbon frame and on the superficial basis of a quick ride out it feels unfortunately sturdy, lacking in either much spring or any subtle ride nuances."

http://road.cc/content/news/64505-eurobike-2012-colnago-c59-disc-–-first-ride

 

[e-rider]

surely an audax bike should just have simple modern dual-pivot caliper brakes like an other road race bike? It's not like you are carrying weight or need brakes in muddy conditions

 

[grumpyoldgit]

"The C59 Disc is based on the popular C59 chassis but Colnago have addressed the problem of the different forces disc brakes put on a frame by designing a completely new fork – chunkier and with the dropouts facing slightly forward to counteract the disc forces on the hub under braking load – and they’ve also beefed up the chain and seat stays. Unfortunately it shows. The C59 Disc is a solid platform. It has to be said that it’s veering towards the big-boned for a performance carbon frame and on the superficial basis of a quick ride out it feels unfortunately sturdy, lacking in either much spring or any subtle ride nuances."

http://road.cc/content/news/64505-eurobike-2012-colnago-c59-disc-–-first-ride

As I said,Colnago are testing it.
Mate of mine is a motoring journalist,write a nice story,but cant drive a car to save his life.I never take any notice of a critics opinion.

 

[mcshroom]

surely an audax bike should just have simple modern dual-pivot caliper brakes like an other road race bike? It's not like you are carrying weight or need brakes in muddy conditions

Last time they got some horrendous weather and parts of the course were more than hub deep in flood water

 

[P.H]

Current round the world record holder Mike Hall used a disk brake bike as did at least one of the previous record holders Vin Cox. It's hard to imagine that either of them could have managed such an achievement on a bike that wasn't comfortable. On the other hand the physics of disk brakes requires a stronger fork, all the manufacturers realise this, anyone in any doubt ought to go Google. I've never ridden a bike with disk brakes, though I have tried all sorts of forks, IME the difference between the harshest and the most comfortable was less than the difference between say 25mm and 30mm tyres. So if I was going for a disk fork I'd also be looking at wider tyres.
I've just sold a disk wheel I bought a year ago to give it a try. For one reason or another I never got round to it, I realised in that year I'd ridden around 8,000 miles without ever feeling the braking I had (Vs, cantis ad DPs) wasn't good enough. That's not to say if I was starting from scratch I wouldn't consider disks. But it would be for other reasons than the need for better braking.
I'm currently Audaxing on my flat barred Rohloff bike, it's perfect for the mucky lanes and a disk brake would probably add to that. Come the better weather I'll be using a lighter faster bike that I wouldn't want to have disks on. I'd suggest you spec a bike for the sort of riding you like to do, then Audax on the most appropriate one for that ride.

 

[mcshroom]

Why would he/you have to reassemble anything after fixing a puncture ?
My wheels just pop out/in provided I get the rotor properly aligned with the gap in the caliper and I don't press the levers while the wheel is out.

With the current state of the art, I'd go with BB7s.
If hydraulics come along later and they fulfill their potential at least you'll have a bike that can fit discs.

I understand that Avid have just announced a lower weight version of the road BB7.

.

No idea why, but I arrived as he was trying to back everything off in the caliper as he couldn't get the disk back in. Then he dropped the pad clip on the floor and after I found it he decided to put the wheel in without pads and just use the front brake to get it home.