resin V brakes?

Martin Wilson said:

I noticed a bike had its V brakes (not the brake levers) described as
resin. Do these actually exist or is it just a typo? Can resin
withstand the force of braking without problems? Is this a new cost
cutting exercise or is it a good lightweight alternative to
metal/alloy?

Also why is it described as resin and not just plastic, whats the
difference?

They are probably resin coated steel.

Martin Wilson vaguely muttered something like ...

Quoted message said:

I noticed a bike had its V brakes (not the brake levers) described as
resin. Do these actually exist or is it just a typo? Can resin
withstand the force of braking without problems? Is this a new cost
cutting exercise or is it a good lightweight alternative to
metal/alloy?

Also why is it described as resin and not just plastic, whats the
difference?

They're [censored] ... Brake levers have been using resin (Plastic) for a long
while, and some Vee brakes now use resin with an in-fill plate of steel.
They bend like any other plastic thing being asked to work towards it's
limits. They're an abomination.

They're [censored], really, really [censored]. They might be marginally better than
teflon on steel rims on a wet day, but they're still [censored]. They're crapper
than a [censored] thing being particularly [censored] on it's worstest, crappiest, [censored]
day .. ever.

Basically they're very, very cheap. I would never buy a bike with resin
brakes .. 😉

--
Paul ...

(8(|) ... Homer Rocks

"A [censored] is a [censored], no matter what mode of transport they're using."

Paul - censored said:

They're an abomination.

They're [censored], really, really [censored]. They might be marginally better
than teflon on steel rims on a wet day, but they're still [censored].
They're crapper than a [censored] thing being particularly [censored] on it's
worstest, crappiest, [censored] day .. ever.

Basically they're very, very cheap. I would never buy a bike with
resin brakes .. 😉

So, that's a "No" then?

On Mon, 09 Aug 2004 13:36:15 +0100, in
<[email hidden]>, Martin Wilson

Quoted message said:

I noticed a bike had its V brakes (not the brake levers) described as
resin. Do these actually exist or is it just a typo? Can resin
withstand the force of braking without problems? Is this a new cost
cutting exercise or is it a good lightweight alternative to
metal/alloy?

Ugh. Yuck. Bleargh.

--
Boredband: High speed internet access with uninteresting content.

Simonb vaguely muttered something like ...

Quoted message said:

Paul - censored said:

They're an abomination.

They're [censored], really, really [censored]. They might be marginally better
than teflon on steel rims on a wet day, but they're still [censored].
They're crapper than a [censored] thing being particularly [censored] on it's
worstest, crappiest, [censored] day .. ever.

Basically they're very, very cheap. I would never buy a bike with
resin brakes .. 😉

So, that's a "No" then?

Yes.

--
Paul ...

(8(|) ... Homer Rocks

"A [censored] is a [censored], no matter what mode of transport they're using."

Martin Wilson said:

Also why is it described as resin and not just plastic, whats the
difference?

I would guess advertising "plastic brakes" might cause people to think
they were [censored] (yes, really!). Resin, OTOH, is something that can
vaguely be associated in some way with high tech composites, so might be
confused in some way with "good".

I suspect a Marketing Department is rearing its ugly head, in other words...

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

Martin Wilson said:

I noticed a bike had its V brakes (not the brake levers) described as
resin. Do these actually exist or is it just a typo? Can resin
withstand the force of braking without problems? Is this a new cost
cutting exercise or is it a good lightweight alternative to
metal/alloy?

I don't know but it depends on the design and shape as much as the
material.

Quoted message said:

Also why is it described as resin and not just plastic, whats the
difference?

"Resin" doesn't sound as [censored] as "plastic" and also is more precise as
there are many types of plastic.

Campagnolo describe their plastic brake levers as "composite", which also
sounds less [censored] than "plastic", but they're actually fine and don't flex
in use any more than aluminium ones. Campag's plastic is *nice* plastic!
The actual calipers or brake arms is different, though. You want as much
rigidity and reliability as you can get there.

~PB

"Pete Biggs" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Campagnolo describe their plastic brake levers as "composite", which also
sounds less [censored] than "plastic", but they're actually fine and don't flex
in use any more than aluminium ones. Campag's plastic is *nice* plastic!

Plastics often have other stuff in them (filler, it's cheaper than the
plastic) which means they can legitimately be called composite. Is the
campag stuff fibreglass?

(agreed about them working - my mirage levers have no problems at all)

cheers,
clive

Clive George said:

Plastics often have other stuff in them (filler, it's cheaper than the
plastic) which means they can legitimately be called composite. Is the
campag stuff fibreglass?

There's plastic and there's Plastic, though. I'd be inclined to trust
Campag's take on plastic for bicycle brakes more than, say, Airfix's...

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

Clive George said:

Plastics often have other stuff in them (filler, it's cheaper than the
plastic) which means they can legitimately be called composite. Is the
campag stuff fibreglass?

Dunno. I suppose it could be glass fibre reinforced nylon with the Mirage
and Xenon models, or "carbon composite" or just a more humble plastic?

Record's are also described as "composite" but that's genuine carbon
fibre, AFAIK.

~PB

Peter Clinch said:

Clive George said:

Plastics often have other stuff in them (filler, it's cheaper than the
plastic) which means they can legitimately be called composite. Is the
campag stuff fibreglass?

There's plastic and there's Plastic, though. I'd be inclined to trust
Campag's take on plastic for bicycle brakes more than, say, Airfix's...

And after all, carbon fibre is basically plastic filaments with a resin
coating..

So plastic is not necessarily cheap or [censored].

...d

"Pete Biggs" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

"Resin" doesn't sound as [censored] as "plastic" and also is more precise as
there are many types of plastic.

I always thought "resin" is something that a violinist puts on his bow to make it
grip the strings better!

mae <[email hidden]> wedi ysgrifennu:

Quoted message said:

"Pete Biggs" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

"Resin" doesn't sound as [censored] as "plastic" and also is more precise
as there are many types of plastic.

I always thought "resin" is something that a violinist puts on his
bow to make it grip the strings better!

Rosin.

--
Rob

Please keep conversations in the newsgroup so that all may contribute
and benefit.

On Mon, 9 Aug 2004 16:02:02 +0100, Adrian Boliston <[email hidden]>

Quoted message said:

"Pete Biggs" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

"Resin" doesn't sound as [censored] as "plastic" and also is more precise as
there are many types of plastic.

I always thought "resin" is something that a violinist puts on his bow
to make it
grip the strings better!

That's rosin, though rosin is a resin since it is obtained from tree sap.
My favourite resin-based product is Retsina. Nothing to do with cycling.
Though an anagram of retsina is trains which is, a bit. RETSINA is also an
almost perfect Scrabble rack as it combines well with most other letters
to give an eight letter word. I think I need a drink. (I was meant to be
going cycling this evening but it really is chucking it down here so I
will have that drink.)

Colin

Adrian Boliston said:

"Pete Biggs" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Quoted message said:

"Resin" doesn't sound as [censored] as "plastic" and also is more precise as
there are many types of plastic.

Quoted message said:

I always thought "resin" is something that a violinist puts on his bow to make it
grip the strings better!

That's rosin.
But following on from the above there are many types of resin as well.
It doesn't mean much as a word without a bit of extra context.

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net [email hidden] http://www.dundee.ac.uk/~pjclinch/

in message <[email hidden]>, Martin Wilson

(') said:

I noticed a bike had its V brakes (not the brake levers) described as
resin. Do these actually exist or is it just a typo? Can resin
withstand the force of braking without problems? Is this a new cost
cutting exercise or is it a good lightweight alternative to
metal/alloy?

composites are usually made of fabric (such as carbon or glass fibre),
sometimes enclosing a core material (balsa, nomex, airex), in a resin
matrix, where the resin is usually polyester or epoxy and may be mixed
with microfibres to add strength, colloidal silica to add viscosity, or
glass microballoons for lightness. So it's perfectly accurate to call
any carbon fibre component a resin component. Obviously, a resin
component isn't necessarily a carbon fibre component; the reinforcement
may be glass fibre or polyester, or possibly other things.

Composites can certainly be a good lightweight alternative to metal,
although of course it depends on the composite. And something described
as 'resin', while it's probably composite (certainly in this
application), may simply be just resin with no reinforcement.

Quoted message said:

Also why is it described as resin and not just plastic, whats the
difference?

Plastic describes a material which can be shaped; but when we use
'plastic' in common parlance we're typically talking about
thermoplastic - materials which can be shaped when heated. Many resins
are set with a catalyst and can't be resoftened by heating - or if they
can be they can't subsequently be reused.

But fundamentally, would you buy brakes made of 'plastic'? 'Resin'
sounds so much more technical.

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/
;; If God does not write LISP, God writes some code so similar to
;; LISP as to make no difference.

in message <[email hidden]>, Simonb

(') said:

Paul - censored said:

They're an abomination.

They're [censored], really, really [censored]. They might be marginally better
than teflon on steel rims on a wet day, but they're still [censored].
They're crapper than a [censored] thing being particularly [censored] on it's
worstest, crappiest, [censored] day .. ever.

Basically they're very, very cheap. I would never buy a bike with
resin brakes .. 😉

So, that's a "No" then?

I wouldn't be so categorical. Some composites have much better strength
to weight characteristics than any metal. Sooner or later the best
brakes will probably have composite callipers. However, I would only
buy 'resin' or 'composite' brakes from a known and reputable maker.

--
[email hidden] (Simon Brooke) http://www.jasmine.org.uk/~simon/

-- mens vacua in medio vacuo --

On Mon, 09 Aug 2004 16:10:15 +0100,

Colin Blackburn said:

Though an anagram of retsina is trains

[snip]

Quoted message said:

I think I need a drink.

I think you may have already had one if you think that trains is an
anagram of retsina. Where is the E?

--
Andy Leighton => [email hidden]
"The Lord is my shepherd, but we still lost the sheep dog trials"
- Robert Rankin, _They Came And Ate Us_

Simon Brooke vaguely muttered something like ...

Quoted message said:

in message <[email hidden]>, Simonb

(') said:

Paul - censored said:

They're an abomination.

They're [censored], really, really [censored]. They might be marginally better
than teflon on steel rims on a wet day, but they're still [censored].
They're crapper than a [censored] thing being particularly [censored] on it's
worstest, crappiest, [censored] day .. ever.

Basically they're very, very cheap. I would never buy a bike with
resin brakes .. 😉

So, that's a "No" then?

I wouldn't be so categorical. Some composites have much better strength
to weight characteristics than any metal.

I agree, but I _seriously_ doubt composite brakes are what we're discussing
... you'll note the OP stated 'resin' not 'composite' ... Strength to weight
ratio matters for nothing if the strength is in the wrong plane, and can't
take the bending forces that a normal cycle brake can exert. Which is one
reason why resin brakes are, categorically, [censored].

Quoted message said:

Sooner or later

So at the moment I'm absolutely correct to be categorical in saying they're
[censored] ...

Quoted message said:

the best
brakes will probably have composite callipers. However, I would only
buy 'resin' or 'composite' brakes from a known and reputable maker.

I will _never_ buy resin brakes, from whoever .. I might buy a composite
brake, but they aren't what's being discussed ..

--
Paul ...

(8(|) ... Homer Rocks

"A [censored] is a [censored], no matter what mode of transport they're using."