Is this something to worry about? (Pics)

[s3 Hoggy]

Hi all got some discs in the post today and they seem to have a groove milled into the edge? My first thoughts were it must be for balancing reasons? But I thought I'd post it on here and see what you guys think?

Thanks in advance

 

[tubby-ben]

showed ur pic too my father in law (very good mechanic) and he said looks like when the disc was made it was slightly out of line so the chopped some to balance it up properly. he said to take it back..

 

[BtownA3]

Just got the same discs from Euro, and mine had nothing like that on them... I would say drop em back to be on the safe side

 

[s3 Hoggy]

Cool thanks lads yeah I'll bring them back and get them sorted! Not good for £100 a disc!

 

[Jason.s]

Seen loads from euros like that and never seen issues with people fitting them but if you feel uncomfortable with fitting them take them back.

 

[s3 Hoggy]

Sorry bud stupid iPhone made me press dislike

 

[ayfreetee]

Nothing to worry about, standard procedure by manufacturers for balancing.

 

[Schlaag]

£100 a disc!? what are they for?

I had exactly the same Pagid discs from ECP.. (no groove on mine) and think I paid £40 a pop for std S3 size...

 

[s3 Hoggy]

£100 a disc!? what are they for?

I had exactly the same Pagid discs from ECP.. (no groove on mine) and think I paid £40 a pop for std S3 size...

They're for Brembo's mate

 

[Dani_B19]

What size disc hog? They togo under the lcr brembos youve just nabbed?

 

[Schlaag]

They're for Brembo's mate

aaha, got ya! that'll be why then! pricey for a few more mm arent they!

 

[s3 Hoggy]

What size disc hog? They togo under the lcr brembos youve just nabbed?

Hahaha! 323mm Dani iirc

 

[Broken Byzan]

That's just the balancing machining, no problem at all

 

[Sam_]

As said, pretty standard. You'd be more ****** if they forgot to balance them...

 

[s3 Hoggy]

Cheers guys guess I'll be keeping them then. Glad I asked now as I'd never seen it before

 

[Westy]

Not as bad as a golf I saw at Ace Cafe on Tuesday that had a visible crack half way through 1 front disc

 

[Rosso TT]

Not as bad as a golf I saw at Ace Cafe on Tuesday that had a visible crack half way through 1 front disc

Do you mean something like this westy?

Happened at the end of the warm up session on my last track day last month.
Heard a high pitch metallic sound twice, both front disc craked, i had to crawl home using the hand brake to slow down.

 

[Westy]

Do you mean something like this westy?

Happened at the end of the warm up session on my last track day last month.
Heard a high pitch metallic sound twice, both front disc craked, i had to crawl home using the hand brake to slow down.

Not quite that severe but the guy was driving round on the cracked disc and said it had been like that for months!

 

[superkarl]

Do you mean something like this westy?

Happened at the end of the warm up session on my last track day last month.
Heard a high pitch metallic sound twice, both front disc craked, i had to crawl home using the hand brake to slow down.

one of the reasons i wont ever buy drilled discs. there is just no need

 

[Rosso TT]

one of the reasons i wont ever buy drilled discs. there is just no need

Yep, i just replaced them with slotted ones.

 

[slydog18]

Mad thing is I showed you that Westy and it was also another ECS disc set up..............not good me thinks?

It was on Bens golf that is supposed to run at about 294bhp or something but is currently running much lower for some reason.