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#1
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Can Disk Brakes flip you over the handle bars?
Obviously I would assume they could if you clamp down fast enough. I ask because I bruised some rib bones this week when I stomped the front brake and *surprise* I found out later my front rim has a bubble bend in it from (I guess) a pot hole at some recent time. Made for a portion of the rim that just wasn't going to get past the brake pads, not while I was trying to actually use said brakes. It would seem a better setup would be one unaffected by a slightly bent rim, or so I wonder. TBerk it would have been funny if it hadn't hurt so much at the time |
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#2
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Can Disk Brakes flip you over the handle bars?
The Berk wrote:
Obviously I would assume they could if you clamp down fast enough. I ask because I bruised some rib bones this week when I stomped the front brake and *surprise* I found out later my front rim has a bubble bend in it from (I guess) a pot hole at some recent time. Made for a portion of the rim that just wasn't going to get past the brake pads, not while I was trying to actually use said brakes. It would seem a better setup would be one unaffected by a slightly bent rim, or so I wonder. http://www.sheldonbrown.com/brandt/over-the-bars.html it would have been funny if it hadn't hurt so much at the time Don't laugh. I wouldn't be so ready to tell all that I used bicycle brakes in such a clumsy manner. Skilled motorcyclists do nose-down wheelies at high speed, often crossing the finish line on only the front wheel. That takes a bit of extra skill. A motorcyclist crashed fatally yesterday in East Palo Alto doing that. Jobst Brandt |
#3
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Can Disk Brakes flip you over the handle bars?
On Apr 30, 10:49 pm, TBerk wrote:
Obviously I would assume they could if you clamp down fast enough. I ask because I bruised some rib bones this week when I stomped the front brake and *surprise* I found out later my front rim has a bubble bend in it from (I guess) a pot hole at some recent time. Made for a portion of the rim that just wasn't going to get past the brake pads, not while I was trying to actually use said brakes. It would seem a better setup would be one unaffected by a slightly bent rim, or so I wonder. TBerk it would have been funny if it hadn't hurt so much at the time Disk brakes have more stopping power and any such 'stomp' can result in a flip, not requiring any irregularities. Due to their design, recumbents are immune from such a flip. |
#5
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Can Disk Brakes flip you over the handle bars?
"DougC" wrote in message
... The reason I say "hydraulic brakes" is that the power of cable-operated disks varies with the cable lengths. The braking power front-to-rear on an upright bike is a bit disappointing, but the difference on a longer recumbent can be huge (does anyplace make thicker brake cable & jacket, that will work with normal brakes? I'd try it...). It's why our tandems all have hydraulic brakes. 2 with magura rims, one with discs. And tandems also have the "brake as hard as you like, you're not going over the top" thing :-) cheers, clive |
#6
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Can Disk Brakes flip you over the handle bars?
On Apr 30, 10:49 pm, TBerk wrote:
Obviously I would assume they could if you clamp down fast enough. Yes, if you don't brace yourself and are unfamiliar with the brake and grab wildly, any powerful brake can be dangerous--but so can many things in life. Well adjusted brakes should be easy to modulate, provided you're not inebriated and have practiced a few panic stops, and shouldn't necessitate the purchase of a new bicycle. Be careful when posting questions like this, because you may attract 'bent riders, who are bearded hammers in search of nails--sometimes with orange flippy flags! |
#7
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Can Disk Brakes flip you over the handle bars?
On Apr 30, 9:48 pm, wrote:
The Berk wrote: Obviously I would assume they could if you clamp down fast enough. I ask because I bruised some rib bones this week when I stomped the front brake and *surprise* I found out later my front rim has a bubble bend in it from (I guess) a pot hole at some recent time. Made for a portion of the rim that just wasn't going to get past the brake pads, not while I was trying to actually use said brakes. It would seem a better setup would be one unaffected by a slightly bent rim, or so I wonder. http://www.sheldonbrown.com/brandt/over-the-bars.html it would have been funny if it hadn't hurt so much at the time Don't laugh. I wouldn't be so ready to tell all that I used bicycle brakes in such a clumsy manner. Skilled motorcyclists do nose-down wheelies at high speed, often crossing the finish line on only the front wheel. That takes a bit of extra skill. A motorcyclist crashed fatally yesterday in East Palo Alto doing that. Jobst Brandt Bite me Jobst. TBerk |
#8
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Can Disk Brakes flip you over the handle bars?
On May 1, 6:47 am, landotter wrote:
On Apr 30, 10:49 pm, TBerk wrote: Obviously I would assume they could if you clamp down fast enough. Yes, if you don't brace yourself and are unfamiliar with the brake and grab wildly, any powerful brake can be dangerous--but so can many things in life. Well adjusted brakes should be easy to modulate, provided you're not inebriated and have practiced a few panic stops, and shouldn't necessitate the purchase of a new bicycle. Be careful when posting questions like this, because you may attract 'bent riders, who are bearded hammers in search of nails--sometimes with orange flippy flags! Yeah, I have a feeling a got one of them on the line right now. Folks, obviously if I had known the rim had a problem I would have factored that in, either readjusting the brakes, massaging the rim, drove around instead of stopping suddenly,and/or all of the above. TBerk |
#9
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Can Disk Brakes flip you over the handle bars?
Doug Cimper wrote:
Obviously I would assume they could if you clamp down fast enough. I ask because I bruised some rib bones this week when I stomped the front brake and *surprise* I found out later my front rim has a bubble bend in it from (I guess) a pot hole at some recent time. .... http://www.sheldonbrown.com/brandt/over-the-bars.html it would have been funny if it hadn't hurt so much at the time Don't laugh. I wouldn't be so ready to tell all that I used bicycle brakes in such a clumsy manner. Skilled motorcyclists do nose-down wheelies at high speed, often crossing the finish line on only the front wheel. That takes a bit of extra skill. A motorcyclist crashed fatally yesterday in East Palo Alto doing that. As someone else noted, most recumbents are immune to this flipping-over-forward problem under hard braking. In my opinion this is another reason that recumbents may be safer for general use--in that during a panic stop, the brakes can be applied with wild abandon and while the bike may slide out and drop the rider sideways, at least it's not going to flip them over onto their head... I think you should read the FAQ item first at: http://www.sheldonbrown.com/brandt/over-the-bars.html before giving the usual endless pitch about the superiority of recumbents. Going over the bars, especially with disk brakes, is highly unlikely to be caused by locking the front wheel, but rather follows the scenario described in the FAQ. Jobst Brandt |
#10
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Can Disk Brakes flip you over the handle bars?
On May 1, 6:47*am, landotter wrote:
On Apr 30, 10:49 pm, TBerk wrote: Obviously I would assume they could if you clamp down fast enough. Yes, if you don't brace yourself and are unfamiliar with the brake and grab wildly, any powerful brake can be dangerous--but so can many things in life. Well adjusted brakes should be easy to modulate, provided you're not inebriated and have practiced a few panic stops, and shouldn't necessitate the purchase of a new bicycle. Be careful when posting questions like this, because you may attract 'bent riders, who are bearded hammers in search of nails--sometimes with orange flippy flags! Oooooh. You're gonna get it now! Those recumbent guys are mean -- head for the hills. Really -- and don't wait at the top. For the OP: Properly adjusted mechanical discs are no more likely to put you over the bars than properly adjusted dual-pivots with good pads and straight rims. They have a different feel and they perform far better in wet weather, but they are not scary strong -- at least not the ones on my cross/commuter bike. Discs oviously are immune to rim problems, but they have their own set of potential problems including wharped rotors, bent pad clips, etc., etc. Like everyone said, any good brake can launch you in a panic stop if you are not properly positioned. -- Jay Beattie. |
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