Disk brakes are a great invention and I am not against technology. You got the wrong impression or I did not explain myself well.
It was an example. Analyse how a disk brake work and you will see that is not suitable for cross. If you want to use it, fine. Nothing against
that. Making disk brakes lighter to compensate the increase in weight of frame head tube, fork and wheel? It can’t happen. How can you take
off 1kg of extra material from something that has a weight of 350grams? the extra weight is not the issue anyway. It is fine if you like it. Same thing with soft and hard
tail bikes. Great invention but then the MTB guys went back to hard tail. The advantage was not enough to compensate the weight (one reason and
loss of power is the second reason).
Great for Downhill but not for cross country. What I am saying is you have to see what discipline you are doing and gear up the best way for it.
Again, if you want full suspension bike in cross country fine. Up to you.
Disk brakes are fine in certain applications and technically valid but no advantage in cross. If you want to use them fine but you are not getting advantage
and losing competitiveness. I am sure you have seen Nascar and for us Euro guys F1. Are the brakes flaming hot when they hit the brakes? Yes, because
when a disk brake is cold.....no braking. The disk brakes works damn good at high temperatures. Road racing going downhill at 90km//h or 50m/h
fantastic. Do you have the same braking in cross? Do your wheels get to 85-100 degrees C like on road or Down Hill? Final decision on how to gear up your
bike is up to you. I have used and tested disk brakes more than 15 years ago. As you can see they have been around for some time and in the end they
found the right application in certain disciplines. Smaller disk = non braking to locking. Hydraulic is a better force and calibrate better but once the brake gets
to temp. Don’t forget that the disk is on one side so asymmetrical backing more ability needed in controlling. Anyway this is a discussion for my friend
Lance at TRP. They have some cool stuff and probably with the new disk brake for cross has overcome some of the issues.
I am talking of something else. If someone has a warehouse full of product and they are not selling but have the power to influence the cycling rules
this, is politics, nothing to do with technology and this happens in the industry. There are many examples out there just need to understand why
certain rules are change, made, introduced and it is not always the way it seems for the end users.
Spinaci (Cinelli) handle bars used by Pro’s at the Giro Tour.... suddenly became not legal. Is it better to see the rider going downhill at speed holding cables?
These were made to help riders keep control of the bike. Sram new Crono bar shifters are not legal if mount strait, considered an extension to the aero bars
but if bent up 15 degrees they are ok. Now what advantage will half a centimetre give you? Cant competition do the same? Yes, but would have lost a season
and products in stock to be thrown away.
Back to tire size what is the technical reason behind it?.....there is not one! So here it is ok to limit technology because we are probably disturbing some
big company which has the power to influence ...... My point is politics in the bike industry and nothing against technology.
Politics is damaging technology.
Check out TRP Cross brakes released at Taipei 2011 show (pics attached)