a high performance road bike with disc brakes appeals to me, a bike I would not race and would put in a couple hundred miles a week witham I insane?
Isn't 20 a little extreme? It might mess up your brakes.
in accordance with my previous years of journey disc brakes on bicycles are used for one in all 2 motives. One, because of the fact the quantity of combating skill required is greater beneficial than would be generated by utilising customary pad-on-rim designs. each and every each and every now and then a 'drum' form brake is used extremely (Ala rear tandem brakes). the 2nd reason is that if the driving situations a bicycle is probably to be ridden are muddy, moist or messy which might tend to 'gum' up a customary caliper form brake (each and every physique it incredibly is tried to end a mountain motorbike that has purely accomplished a messy creek crossing can comprehend this completely). because of the fact of this many mountain motorcycles -- and that i assume some cycle bypass bicycles -- use disc brakes extremely of calipers. For the main area I rather tend to think of that street bicycles would not have the two of those subjects as there many times isn't sufficient weight (or mass) to require the combating skill of a disc brake neither is a street motorbike probably to bump into muddy or messy sufficient situations to warrant a caliper brake ineffective. in addition to, and that i'm easily no physicist, yet given the rather small volume of tire patch touching the line floor at any given time it would look to me the sheer combating skill of disc brake would reason the wheels to in basic terms lock up rendering the bicycle uncontrollable. No, i might purely as quickly carry on with my calipers on my street motorbike than take that possibility with disc brakes.
Based on my previous years of experience disc brakes on bicycles are used for one of two reasons. One, because the amount of stopping power required is more than can be generated by standard pad-on-rim designs. Sometimes a 'drum' style brake is used instead (Ala rear tandem brakes). The second reason is if the riding conditions a bicycle is likely to be ridden are muddy, wet or messy which would tend to 'gum' up a standard caliper style brake (anybody that's tried to stop a mountain bike that has just completed a messy creek crossing can understand this perfectly). That is why many mountain bikes -- and I suppose some cycle cross bicycles -- use disc brakes instead of calipers. For the most part I tend to think that road bicycles would not have either of these issues as there generally is not enough weight (or mass) to require the stopping power of a disc brake nor is a road bike likely to encounter muddy or messy enough conditions to warrant a caliper brake useless. Furthermore, and I'm certainly no physicist, but given the relatively small amount of tire patch touching the road surface at any given time it would seem to me the sheer stopping power of disc brake may cause the wheels to just lock up rendering the bicycle uncontrollable. No, I'd just as soon stick with my calipers on my road bike than take that chance with disc brakes.
A road bike with disc brakes? - You're not insane but. . . . . . Please understand the following. A standard roadbike (lets say 25c tyres) has very little contact with tarmac, a few cm? at most, - it is so easy to lock up wheels using standard calipers, a disc coupled with the relatively low weight of a road bike, - would almost certainly guarantee it !!!! You are basically trying to solve a problem that doesn't exist and creating another more dangerous side-effect! Speak to anybody who has used standard brake pads on carbon rims !!! They will have a few stories to tell ! Ok someone will point out that some cyclocross bikes have them but lets not confuse the issue, their purpose is different as the rims are often caked with mud. Good thinking and good question but modern dual pivot calipers are more than adequate. Enjoy your riding mate. .
