The Ultimate Brakeless/Front/Rear/How many brakes? thread

Well learn by my mistakes, I only got a C

I have dual pivot ultegra brakes on my geared bike and neither front or back can lock up the wheel.On my fixed I have an old campy single pivot which works only very slightly.

unless you mean in the rain it sounds like you can't set up your brakes....

unless you mean in the rain it sounds like you need some help to set up your brakes

fixed (just nicer).

Here is a fact:

a front brake on a freewheel bike gives moar stopping power than nobrakes and a fixed wheel.

/fact

OH come on, my spelling was ironic, i've spent too long on 'know your meme' today and it's rubbing off on me.

But yes, granted, in the event that you are riding a free wheel bike with shit brakes that don't work, AND its raining - then under these circumstances, a brake-less fixed rear wheel is better.

i was one of the best in my A-level class actually. almost applied to do engineering at Oxford. what were you referring to?

i can't believe i am even having to explain this to such an excellent student of physics... but...

if you are the sort of rider who "jams on the brake" then if you had both brakes you would have presumably "jammed on the brakes" which would have had exactly the same result as the back wheel would have been off the floor before you could say "do a skid!"

you might want to brush up a bit with this

Got a puncture in dark and rain last night, was in a hurry and stupidly put wheel on wrong way around thus was ss front brake only. Could'nt be arsed to change it so rode home.....hated it, stupid idea, there is no argument what so ever that you are anywhere near as safe as fixed with fr brake.

Not to put a damper on it,. but you could have gone over the bars just the same with a rear brake as it doesn't do much when emergency stopping in a straight line

Fixed

Most effective breaking systems...

1) front and rear discs
2) front and rear dual pull
3) front disc
4) front dual pull
5) rear disc
6) rear dual pull
7) front & fixie
8) front & ss
9) no break fixie

I would imagine the safety, for a equal level of skill, is related to how high or low you happen to be on that list.

fashion<function

Most effective breaking systems...

1) front and rear discs
2) front and rear dual pull
3) front disc
4) front dual pull
5) rear disc
6) rear dual pull
7) front & fixie
8) front & ss
9) no break fixie

I would imagine the safety, for a equal level of skill, is related to how high or low you happen to be on that list.

fashion<function

Next week, the top 9 bestest jet planes.

as in a dual pull calliper break,

4) front break only, on a ss.
6) rear break only, on a ss.
7) front break only, on a fixie.

I did not include single pull calliper breaks as they are pretty rubbish. Thats just a quick calculation I did at work. (I am a Engineer/Physicist)

I am sure there is other opinions out there, but they will most likely be subjective. Not that mine is a gold standard or anything! Just my informed opinion.

:-) r

as in a dual pull calliper break,

4) front break only, on a ss.
6) rear break only, on a ss.
7) front break only, on a fixie.

I did not include single pull calliper breaks as they are pretty rubbish. Thats just a quick calculation I did at work. (I am a Engineer/Physicist)

I am sure there is other opinions out there, but they will most likely be subjective. Not that mine is a gold standard or anything! Just my informed opinion.

:-) r

It's 'brake'.

And doesn't have much to do with how people really ride bikes IMO. It gives zero consideration to control.

What is a single pull brake?

as in a dual pull calliper break,

4) front break only, on a ss.
6) rear break only, on a ss.
7) front break only, on a fixie.

I did not include single pull calliper breaks as they are pretty rubbish. Thats just a quick calculation I did at work. (I am a Engineer/Physicist)

I am sure there is other opinions out there, but they will most likely be subjective. Not that mine is a gold standard or anything! Just my informed opinion.

:-) r

I think I'm mostly confused as to why you think a front brake on a 'fixie' is less effective than a front only on a SS. Have you ever ridden a fixed geared bike?

It refuses to die...

pivot. it's pivot.

1)

Miro_o

Like I said, this is not an exaustive theory. However, it does give a certain credit to control, as I said "for a equal level of skill".

2)

The_Brick

A single pull...
http://harriscyclery.net/merchant/370/images/large/BR7266.jpg

A dual pull...
http://www.getprice.com.au/images/uploadimg/767/142__1_shimano-duraace-brakes-med.jpg

Sorry about the low resolution second image. Wiki it if not sure.

3)

Pifko

I have riden a fixie. The most common method of stopping is a fixie skid. A skid is a very innefective method of energy conversion, thus not very safe. Also, locking up your rear reduces your ability to be on control of your bike. I quote wiki, here describing abs (ie, not locking up or skidding) which says it rather well "A rotating road wheel allows the driver to maintain steering control under heavy braking by preventing a skid and allowing the wheel to continue interacting tractively with the road surface as directed by driver steering inputs". The idea being that a skid is a bad idea.

I guess you could argue that a SS with a front break is equal to a fixie with a front break, there is however the issue of pedalling while breaking. Like I said, not a complete theory.

Explain the order you chose.

If I had been querying the terminology, I would have included all instances where that terminology had been used.

If you really want to know its based on Joules per second per area of contact, with respect to heat loss as a function of temperature, while trying to compensate for a rate dependance

Pifko

I have riden a fixie. The most common method of stopping is a fixie skid. A skid is a very innefective method of energy conversion, thus not very safe. Also, locking up your rear reduces your ability to be on control of your bike. I quote wiki, here describing abs (ie, not locking up or skidding) which says it rather well "A rotating road wheel allows the driver to maintain steering control under heavy braking by preventing a skid and allowing the wheel to continue interacting tractively with the road surface as directed by driver steering inputs". The idea being that a skid is a bad idea.

I think you've been watching too much Mash SF. Most people just use a controlled resistance against the cranks if they want to slow down, which if done properly is pretty effective. Used in conjunction with a front brake you shouldn't have any problems. I've never intentionally resorted to a 'fixie skid' to slow down.

Either that's because I can read traffic well and know how to handle a bike or...
I'm too fuckin' slow to need to :)

Thats fair enough, but I was more thinking about the situations where you need a make a quick emergency style stop.

You cant measure the ability of a rider, it too much to even think about, all I am saying is that there are certain parameters by which you can measure how effective a certain breaking system works.

I just think that if you are going to make a decision about your breaking system, you should have some real idea about how effective it is.

Thats just a quick calculation I did at work. (I am a Cunt/Wanker)

Fixed

P.S. your grammar is apalling.

1)

2)

The_Brick

A single pull...
http://harriscyclery.net/merchant/370/images/large/BR7266.jpg

A dual pull...
http://www.getprice.com.au/images/uploadimg/767/142__1_shimano-duraace-brakes-med.jpg

Sorry about the low resolution second image. Wiki it if not sure.

I think you meant to label those as Single PIVOT and Dual PIVOT.

When people refer to 'pull' on brakes they mean side pull, centre pull, linear pull etc, etc...

im sorry that you feel like that joe,

tell you what... why dont you do what i have done in academia while english is not your first language... then you can talk to me about something i have said or sone wrong...

and here is something for your no doubt un-educated self...

"we ought not to be embarrassed of appreciating the truth and of obtaining it wherever it comes from, even if it comes from races distant and nations different from us. nothing should be dearer to the seeker of truth than the truth itself, and there is no deterioration of the truth, nor belittling either of one who speaks or conveys it" Al-Kindi

DFP,

I stand corrected. I am used to engineering terminology, which would render them both as single or double pull. I will be sure to use pivot from now on.

R