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Author Topic: Rear discs.  (Read 2517 times)

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Migv6 le Frog Fan

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Rear discs.
« on: 16 October 2017, 20:11:54 »

Going to need a new pair soon for my 3.2. I assume VX is still the best option ? Anyone know the current price for a pair on TC.
Ive long since forgotten the TC login details - again.  ::)
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Migv6 le Frog Fan

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Re: Rear discs.
« Reply #1 on: 17 October 2017, 13:47:05 »

59 views and no-one knows the price of a pair of rear discs on TC ?  ???
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tunnie

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Re: Rear discs.
« Reply #2 on: 17 October 2017, 13:52:14 »

Were they not stupid money?  :-\

The fronts were always very reasonable with kit price with pads included, but with rears in particular the vented ones were insane money I think.  :-\
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Migv6 le Frog Fan

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Re: Rear discs.
« Reply #3 on: 17 October 2017, 13:56:39 »

Dunno tbh. If that's the case I might measure the thickness, and if possible have the faces ground to remove the lip.
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tunnie

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Re: Rear discs.
« Reply #4 on: 17 October 2017, 14:04:53 »

Quick search, not as bad as I thought, stole Jimbob's post:

Retail, trade, tradeclub + vat
Brake Disc Kit; Front; Ø 296 x 28mm; Vented    93175466    £114.00    £94.11    £83.83

Solid; Ø 286 X 12mm    90444513    £98.00    £83.36    £68.61
(or for others Vented; Ø 286 x 20mm    93182287    £98.00    £83.57    £70.95)

cant see the rear pad price for some reason, front pads in the kit above.

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Migv6 le Frog Fan

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Re: Rear discs.
« Reply #5 on: 17 October 2017, 15:58:12 »

Yeah they do look a bit pricey. I already have a set of genuine pads, just got a little lip on the discs.
Thanks.  :y
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Bigron

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Re: Rear discs.
« Reply #6 on: 17 October 2017, 16:19:12 »

Albs, after KwikShit condemned my front discs (felt ok to me) and wanted £260 or so to replace them, pointing to the lip, I felt the swept surfaces and they seemed ok to me, so I said "Forget it, at that price!". They looked shocked, because seemingly I "did a Lizzie" and refused to be conned.
Anyway, the real point is that I then went to Tyre-Smart for tyres and a second opinion, and they said that the discs were fine and the lip was not a problem because it's common once the discs have worn even by a small amount and even new pads wont touch it.
As you implied when you said that you would check the thickness, so long as they are above the minimum required thickness, all is well.  :y

Ron.
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Migv6 le Frog Fan

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Re: Rear discs.
« Reply #7 on: 17 October 2017, 16:41:43 »

Im thinking along the same lines Ron. If they were only a few quid I would chuck a new pair on there, but when there isn't much change out of £100, when you add VAT, then I shall make the effort to find out if they really need replacing.
I know new ones are 20mm thick, but now need to find out the minimum thickness, before proceeding any further.  :y
If it really needs them it shall have them, but its been spoilt rotten with new parts since I bought it, and there has to be a limit somewhere.  ;) ;)
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Bigron

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Re: Rear discs.
« Reply #8 on: 17 October 2017, 16:54:38 »

Maybe Tyre-Smart will have the figures, Albs? They seem pretty clued-up there.
If not, surely someone on the forum will know, or even Vx themselves?
Do you have a micrometer, or able to borrow one?

Ron.
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Re: Rear discs.
« Reply #9 on: 17 October 2017, 17:02:58 »

Got a digital one Ron. Just need the minimum thickness. I'm sure Doc Gollum will post it up when he sees this thread.
He is like an Omega encyclopedia.
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STEMO

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Re: Rear discs.
« Reply #10 on: 17 October 2017, 17:04:23 »

Got a digital one Ron. Just need the minimum thickness. I'm sure Doc Gollum will post it up when he sees this thread.
He is like an Omega encyclopedia.
When the pads come together, and you don’t really stop, the discs have had it  ;D
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Migv6 le Frog Fan

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Re: Rear discs.
« Reply #11 on: 17 October 2017, 17:09:04 »

I'm too old for all that exciting stuff now.  :P ;D
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Re: Rear discs.
« Reply #12 on: 17 October 2017, 17:29:09 »

Does anyone use the indent in the side of the disc? You know that grooved but which shows how far it can wear down?

eg:

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Bigron

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Re: Rear discs.
« Reply #13 on: 17 October 2017, 17:35:24 »

You can't see how close to those indents for all the srustiness on the outside edges, sir!  :(

Ron.
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Bigron

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Re: Rear discs.
« Reply #14 on: 17 October 2017, 17:36:15 »

For srustiness, read crustiness - typo due to sausage fingers!
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Re: Rear discs.
« Reply #15 on: 17 October 2017, 17:45:18 »

Wire brush it up  :y

I did that, then compare the lip with that indent, for me it meant I had miles left on the discs and stuck new pads in.
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Nick W

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Re: Rear discs.
« Reply #16 on: 17 October 2017, 17:49:07 »

Does anyone use the indent in the side of the disc? You know that grooved but which shows how far it can wear down?

eg:







Aren't they to balance the disc? Every worn disc I've ever changed has had a ridge around the perimeter, not extra wear.
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Doctor Gollum

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Re: Rear discs.
« Reply #17 on: 17 October 2017, 18:04:25 »

Does anyone use the indent in the side of the disc? You know that grooved but which shows how far it can wear down?
Pmsl ;D

That is machined in to balance the disc...

Minimum thickness is stamped on the outer edge, and is typically 1-2mm less than the nominal thickness...

In the case of the Omega, this is 18mm iirc :y
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Re: Rear discs.
« Reply #18 on: 17 October 2017, 18:07:09 »

My mistake, thought it was wear indicator. But I bet that grove is not far off 18mm,
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Re: Rear discs.
« Reply #19 on: 17 October 2017, 18:09:10 »

My mistake, thought it was wear indicator. But I bet that grove is not far off 18mm,
If that's a 20mm disc, the pads would drop out by that point as there's about 14mm of disc left ;)
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Migv6 le Frog Fan

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Re: Rear discs.
« Reply #20 on: 17 October 2017, 18:53:47 »

Does anyone use the indent in the side of the disc? You know that grooved but which shows how far it can wear down?
Pmsl ;D

That is machined in to balance the disc...

Minimum thickness is stamped on the outer edge, and is typically 1-2mm less than the nominal thickness...

In the case of the Omega, this is 18mm iirc :y

I said he wouldn't let me down.  ;D
Thanks DG. :y
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Re: Rear discs.
« Reply #21 on: 17 October 2017, 19:09:35 »

Try your local factor for a price, or even car parts for less, bound to be a code.
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Re: Rear discs.
« Reply #22 on: 18 October 2017, 19:00:48 »

My mistake, thought it was wear indicator. But I bet that grove is not far off 18mm,
Its a long way off - a disc cannot sustain that amount of wear, as they would become too weak.

:y
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