Front + rear brakes operated by one brake lever
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Front + rear brakes operated by one brake lever
I asked this on an earlier post, but it got lost among all the other questions I was asking in the thread. So I decided to ask in its own thread.
I am a lightweight backpacker and stand by the saying that lighter is better. With that in mind...
Can the front and back brakes be operated with one brake lever?
Thanks
Wayneburg
I am a lightweight backpacker and stand by the saying that lighter is better. With that in mind...
Can the front and back brakes be operated with one brake lever?
Thanks
Wayneburg
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If you can engineer a mechanism that will pull both brakes at once, you can, I guess. The Campagnolo differential brake design might work nicely here. But again, without individual control of both wheels, it would be hard to control the bicycle, I think. I can see situations where only one wheel need braking, esp. in mountain biking.
If they were hydraulic disc brakes I'm sure you can build a distribution valve that will allow pressure to both calipers.
If they were hydraulic disc brakes I'm sure you can build a distribution valve that will allow pressure to both calipers.
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Why would it be hard to control the bicycle? I've always used both brakes at the same time. Why would I want to operate one or the other individually?
#4
hello
Some tandems are set up that way....a single lever actuates the front cantis and the rear drum simultaneously.....or something in that effect. There are gismos that allow you to do this. The other lever pulls the rear cantis. You may get a better response posting this in the tandem section.
George
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Originally Posted by The Fixer
You may get a better response posting this in the tandem section.
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#7
Every lane is a bike lane
Originally Posted by Wayneburg
Oops I just cross posted to the tandem section. Guess I'll delete it.
Cheers.
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Here ya go Grimeca
This is one of their systems were one lever actuates to calipers but you could purchase just the IBS part and rig it to any hydro they make.
This is one of their systems were one lever actuates to calipers but you could purchase just the IBS part and rig it to any hydro they make.
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I mostly use front brake and then both but almost never just the rear. You dont want the rear to washout on you and it can happen. Dual pull might be ok if you can adjust pressure seperate.
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Check this out.
https://www.ihpva.org/people/tstrike/2into1v2.jpg
https://www.oandp.com/products/trs/sp.../bicycling.asp
https://www.brakedirector.com/userreviews.htm
https://www.ihpva.org/people/tstrike/2into1v2.jpg
https://www.oandp.com/products/trs/sp.../bicycling.asp
https://www.brakedirector.com/userreviews.htm
Last edited by Wayneburg; 01-31-04 at 12:07 PM.
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Originally Posted by shokhead
I mostly use front brake and then both but almost never just the rear. You dont want the rear to washout on you and it can happen. Dual pull might be ok if you can adjust pressure seperate.
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If you only use the back, you aren't going to be able to stop as fast, since the weight transfers to the front of the bike on deceleration. A wheel with no weight on it loses traction whch is a pre-requisite of good braking. Proper modulation of the front brake, much like ABS on a car, will give you the most braking ability. The point of greatest braking power is that point just before lockup, which is when the tire loses traction, and the wheel stops all forward motion, which would cause an endo. Yeah, I'm a car guy too.
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I had a 99 trek 7500 and it had a abs type thing on the front brake so it would'nt lock up and it worked pretty good. Wonder why they dont use them more?
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Front should maintain around 60% of the stopping power between both sets. I do see a use for individual control as sometimes 'washing' out is a useful technique. I think a single control lever would be cool but it would have to be modulated. Meaning not a 50/50 draw. Then again I would never consider it on a mtb...
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You cannot use one lever to control both brakes coz that'll be too dangerous, you have to judge the situation 1. if you're going downhill straight road dry no sand and need to stop urgently you may put 70% front 30% rear to stop efficiently
2. if you're going downhill wet and winding road then a more pressure on the back is safer to control the bike.
There're so many other example that tells you to use your own discretions, but definately applying different pressure for the front and rear. Therefore I think having one lever controling both brakes are dangerous.
2. if you're going downhill wet and winding road then a more pressure on the back is safer to control the bike.
There're so many other example that tells you to use your own discretions, but definately applying different pressure for the front and rear. Therefore I think having one lever controling both brakes are dangerous.
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as so many has mentioned... It is possible to use one lever for two or more brakes...
But it will be very dangerous, if for example you apply the same pressure on both front and rear. It would cause the rear to skid, while the front has not reached it full stopping power, making the whole thing useless in emergencies and quick manuevering especially in XC and DH.. as mr skareb stated above.
Besides, I like to play with my rear wheel. Controlled skids to come in useful when going DH.
This is the reason why motorcycles use diff. controls/levers for the front and rear wheel. Same applies to bikes.
But it will be very dangerous, if for example you apply the same pressure on both front and rear. It would cause the rear to skid, while the front has not reached it full stopping power, making the whole thing useless in emergencies and quick manuevering especially in XC and DH.. as mr skareb stated above.
Besides, I like to play with my rear wheel. Controlled skids to come in useful when going DH.
This is the reason why motorcycles use diff. controls/levers for the front and rear wheel. Same applies to bikes.
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check this out
Originally Posted by Chi
If you can engineer a mechanism that will pull both brakes at once, you can, I guess. The Campagnolo differential brake design might work nicely here. But again, without individual control of both wheels, it would be hard to control the bicycle, I think. I can see situations where only one wheel need braking, esp. in mountain biking.
If they were hydraulic disc brakes I'm sure you can build a distribution valve that will allow pressure to both calipers.
If they were hydraulic disc brakes I'm sure you can build a distribution valve that will allow pressure to both calipers.
Go to www.brakedirector.com
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Let me get this straight, trying to save weight by dropping 1 brake lever.. isn't this almost akin to that discussion thread a while back saying that you can shave over half a pound by simply taking a dump before getting on your bike?
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Originally Posted by slvoid
Let me get this straight, trying to save weight by dropping 1 brake lever.. isn't this almost akin to that discussion thread a while back saying that you can shave over half a pound by simply taking a dump before getting on your bike?
I take a dump before I ride.. not to save some weight, but for other reasons....
#20
Every lane is a bike lane
Originally Posted by dexmax
I take a dump before I ride.. not to save some weight, but for other reasons....
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Originally Posted by shokhead
I had a 99 trek 7500 and it had a abs type thing on the front brake so it would'nt lock up and it worked pretty good. Wonder why they dont use them more?
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Last edited by khuon; 02-14-04 at 04:28 AM.
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Originally Posted by Wayneburg
I asked this on an earlier post, but it got lost among all the other questions I was asking in the thread. So I decided to ask in its own thread.
I am a lightweight backpacker and stand by the saying that lighter is better. With that in mind...
Can the front and back brakes be operated with one brake lever?
Thanks
Wayneburg
I am a lightweight backpacker and stand by the saying that lighter is better. With that in mind...
Can the front and back brakes be operated with one brake lever?
Thanks
Wayneburg
But it is not a good idea.
On pavement, most of the stopping power is in the front brake. As you stop, the bike leans forward taking weight off of the rear wheel. The idea is to use both brakes and to apply pressure to the front&back and when you hear the rear wheel skid, to let up pressure on the front a bit. That means the rear wheel is unloading and much more pressure on the front will cause you to flip over the handlebars.
The people have already posted that on mountain bikes off road, there are varying conditions that affect the optimal braking technique.
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One of the better discussions about brake techniques is here:
https://www.sheldonbrown.com/brakturn.html
The other thing to look at would the brake combiner/modulator weight more of less than a brake lever? You could always go fixed and run a front brake only.
https://www.sheldonbrown.com/brakturn.html
The other thing to look at would the brake combiner/modulator weight more of less than a brake lever? You could always go fixed and run a front brake only.
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Hey - not true
Originally Posted by Pat
It is possible. Any reasonably resourceful mechanic could do it.
But it is not a good idea.
On pavement, most of the stopping power is in the front brake. As you stop, the bike leans forward taking weight off of the rear wheel. The idea is to use both brakes and to apply pressure to the front&back and when you hear the rear wheel skid, to let up pressure on the front a bit. That means the rear wheel is unloading and much more pressure on the front will cause you to flip over the handlebars.
The people have already posted that on mountain bikes off road, there are varying conditions that affect the optimal braking technique.
But it is not a good idea.
On pavement, most of the stopping power is in the front brake. As you stop, the bike leans forward taking weight off of the rear wheel. The idea is to use both brakes and to apply pressure to the front&back and when you hear the rear wheel skid, to let up pressure on the front a bit. That means the rear wheel is unloading and much more pressure on the front will cause you to flip over the handlebars.
The people have already posted that on mountain bikes off road, there are varying conditions that affect the optimal braking technique.
Now that I have discovered Brake Director, I can say that any mechanic could do the simple, but this little item does it all for a whole lot less mulah than you'd think. The comment about mountain bike is true, also adding in extreme or trick biking where individual wheel control is vital.
But as for dropping one lever cause of weight - give it up. It won't make that much difference weighwise. Most traditional single lever setups pull both brakes off of one cable. You got to be pretty strong to operate it. I can write a whole lot more on this subject. It's a weak trade off.
BTW if you are in Seattle, the guys from Brake Director are handling the NEW TECHNOLOGY AND SAFETY BOOTH at the GROUP HEALTH SEATTLE INTERNATIONAL BICYCLE EXPO in March. I'm getting mine there.
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This is getting absolutely scary. Please take no offense, but this is a fine example of how everyone needs, at some time in their life, some training in how to ride a bike.
Save for those times when traction is sketchy, the front wheel has far greater stopping power than the back. Don't believe me? Fine, just look at cars and motorcycles. The front brakes on both are far more powerful than the rear. Many motorcycles have one disk brake in the rear, with two in the front. If the rear wheel is better, why are the two disk on the front?
The Bike Gospels of the Three Johns all teach the same technique. Hit both brakes, the front harder than the rear, while shifting your weight rearward (quick stops). If the rear brake begins to skid, due to unloading by weight tranfer forward, ease up on the front brake to prevent an endo. You will stop far faster than the rear brake alone, somewhat faster than front brake alone, and safer than front brake alone.
Trust me, I am League of American Bicyclists LCI # 1126.
Save for those times when traction is sketchy, the front wheel has far greater stopping power than the back. Don't believe me? Fine, just look at cars and motorcycles. The front brakes on both are far more powerful than the rear. Many motorcycles have one disk brake in the rear, with two in the front. If the rear wheel is better, why are the two disk on the front?
The Bike Gospels of the Three Johns all teach the same technique. Hit both brakes, the front harder than the rear, while shifting your weight rearward (quick stops). If the rear brake begins to skid, due to unloading by weight tranfer forward, ease up on the front brake to prevent an endo. You will stop far faster than the rear brake alone, somewhat faster than front brake alone, and safer than front brake alone.
Trust me, I am League of American Bicyclists LCI # 1126.