Linked brakes

"I've trained her to perform services one would hesitate to ask a
professional"

 

that rings a bell. Presumably your use of quotation marks indicates
you're, err, quoting something?

 

I am. It's from Dangerous Liaisons - John Malkovich referring to how
he's "broken in" the Uma Thurman. The quote's not exact, but it has
the gist.

 

If ever you have a virgin it would probably be the last thing you'd ever
do dear.... Unless I can have one too??

 

Colonel Tupperware says...

What a load of fucking overcomplicated bollocks. What's wrong with
normal brakes ffs?

 

*snort*

 

It depends on your interpretation of the 70 - 30 thing.

My interpretation of is that it describes the ratio of breaking effort:
70% of the effort is at the front, 30% at the back. That doesn't mean
that you can't put the front full on, just that the back will supply a
little less than half the equivalent braking.

But, Col. Tupperware's explanation indicates that even so, not all the
braking is used...


--
John (jsp)

SV 650
Black it is
And Naked

 

It doesn't leave 30% and 70% "not being used", it splits the braking
effort 70:30.

Not the same thing at all.

That bit.

--
| ___ Salad Dodger
|/ \
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|_\_____/_| ..74326../..18420.../..3184./.19406
(>|_|_|<) TPPFATUICG#7 DIAABTCOD#9 YTC#4 PM#5
|__|_|__| BOTAFOT #70 BOTAFOF #09 two#11 WG*
\ |^| / IbW#0 & KotIbW# BotTOS#6 GP#4
\|^|/ ANORAK#17 IbB#4
'^' RBR Landmarks: 12 Pts: 220 Miles: 914

 

I don't find this swapping from bike to bike but it's fairly obvious I'm
not on a Guzzi.

Their system is simpler. Footbrake operates the left hand side (left
front and rear) and the hand brake operates the right hand side (right
front only).

This doesn't help much but allows me to say Guzzi's are jolly nice and
were there before Honda.

 

Nowt really, I was just trying to clarify and point out it's not that
complicated really.
Now I've re-read your initial post, I can see where my
misunderstanding crept in.

Its the even less bit that got me. You implied, IMO, that, when using
the pedal as well as the lever, that the front brake force was
reduced. I now see what you meant.

--
ColonelTupperware,
spouting bollocks on Usenet since 1997
Usenet FAQ at
http://www.its.caltech.edu/its/services/internetapps/news/news2.shtml
UPCE FAQ at http://upce.org.uk/ UKRM FAQ at http://www.ukrm.net/faq/

 

well, yes, and I'm not aware of any cars that have brake disks on both
sides of the wheels.

Frag's posit would only be true with a very thin axle, or made out of
cheese.

 

And don't forget that it will make the wheel turn in that direction
too...

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ GSX-R1000K3
`\\ | //' BOTAFOT#3, SbS#2, UKRMMA#13, DFV#8, SKA#2
`\|/`
`

 

Unless it's a shaft drive, presumably.

 

Only if you've fastened the disk to the axle instead of the wheel.

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ GSX-R1000K3
`\\ | //' BOTAFOT#3, SbS#2, UKRMMA#13, DFV#8, SKA#2
`\|/`
`

 

ah yes.

He's still talking crap, though.

 

I think there is a certainly element of truth in that. On bicycle
disc brakes it's possible that if you don't do up your qr tight enough
for the wheel to come out of the dropout on the disc brake side only
under braking. So there must be some twisting forces happening.

Cuased a few accidents it has and has lead fork manufacturers to alter
the angle of the dropouts to prevent it.

 

Eh? That would mean that the wheels themselves didn't line up,
wouldn't it? Try and imagine the handling if that were the case. I
think you've been misinformed.

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ GSX-R1000K3
`\\ | //' BOTAFOT#3, SbS#2, UKRMMA#13, DFV#8, SKA#2
`\|/`
`

 

No - the disc is mounted to the hub not the wheel, & the wheel itself
is dished. At least that's the case on the MV.

 

It's a nice thing to have the braking effort central, and also to have the
unsprung mass of the wheel as close to the centreline as possible.
Calipers and discs form a relatively high percentage of the unsprung mass
on modern hollow spoked alloy wheels. Of course, most of the gyroscope
effect is generated by the tyre, because it's relatively heavy and is at
the outermost circumference of the wheel.

 

Right, yeah. That's quite common, found on almost any
derailleur-geared pushbike, but is more to do with weight distribution
then alignment of braking (or accelerating) forces. In any event, it
doesn't put the disk "in-line" with the wheel itself, as that would
require a one-sided dish effect, leading to immediate wheel collapse.

And it's certainly _not_ found on the front wheel of single-disked
motorbikes.

--
_______
..'_/_|_\_'. Ace (brucedotrogers a.t rochedotcom)
\`\ | /`/ GSX-R1000K3
`\\ | //' BOTAFOT#3, SbS#2, UKRMMA#13, DFV#8, SKA#2
`\|/`
`