Disks?
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18 Posts
I'm not running disks. I simply don't need the stopping power to justify the cost.
Generally disc sytems are heavier and hazards do no come at you as quick on the road. Maybe the number one reason though is performance in the wet and especially mud. I have never used discs, conventional pads work good for my local terrain, however in severe mountainous areas I would get a disc equipped bike.
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129 Posts
Discs on a road bike are kind of overkill for the tires. You have less than a square-inch(rough guess) of contact patch with the road. Anything stronger than the typicaly "sissy" brakes of a road bike, and you'll just lock the brakes up and slide. You're better off with more of a anti-lock brake system.
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20 Posts
I'm not running disks either, never have.
"Discs on a road bike are kind of overkill for the tires."
^Agreed.
"Discs on a road bike are kind of overkill for the tires."
^Agreed.
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747 Posts
You have to think also about the riders of the different styles of bikes. Mountain Bikes are ridden by big manly men. We need more power to stop all of the huge muscle and manliness we have on a bike. Road riders are scrawny little waifs, they are the starving supermodels of the biking world. Road bikes are light weight and weak, combined with the road riders who are light weight and weak there is no reason for real powerful stopping power. Heck if a road rider were to pull the lever on a disc brake equipped bike it would fling them OTB like a dog shaking a washcloth. Not a pretty sight.
So to answer the questions road bikes don't have disc brakes to protect the road bike riders.
So to answer the questions road bikes don't have disc brakes to protect the road bike riders.
Disk
The advantage of the disk is that the disk is farther away from the water that can reduce the efficiency of the braking system. Second reason for disk is to prevent sticks and other foriegn objects from getting jambed in the wheel and frame.
Touring bikes and tandems typically will have the disk brake available on the rear wheel to better handle higher capacity loads and heat problems with long down hills that a road bike does not have.
Your comparing sports cars (road) to tractors (off road), Cadillac (touring), and Bus (tandems).
The advantage of the disk is that the disk is farther away from the water that can reduce the efficiency of the braking system. Second reason for disk is to prevent sticks and other foriegn objects from getting jambed in the wheel and frame.
Touring bikes and tandems typically will have the disk brake available on the rear wheel to better handle higher capacity loads and heat problems with long down hills that a road bike does not have.
Your comparing sports cars (road) to tractors (off road), Cadillac (touring), and Bus (tandems).
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346 Posts
Interesting arguments, I recently read a Tweet from LA, while he was training for Leadville, he was wondering when we would have discs on road bikes, hmmm? I just ain't smart enough to figure this one out, but admit I just don't seem to need the stopping power so I have pads.
DrB
DrB
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1,501 Posts
It varies on how much you use the stop button, the terrain, and conditions the bike is used in.
As for rotors, I have never had to replace one because it was worn out. They usually get bent first.
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328 Posts
To my knowledge there is no such thing as a disk brake system for road bikes. I've sometimes wondered if they will appear some day but so far.... no. When you think about it having a caliper squeeze the rim is a bit primitive but I guess the rim is already there for the squeezing as opposed to a disk which has to be added, thereby heavier, more stuff, wider, less aero. Naw, let the gorrillas on the MTBs keep there disks.
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