How To Tell If Discs Are Worn Out

[hardsteppa]

Hey skyliners

Noob question but how do you know when discs are worn out? If you don't have anything to measure thickness that is. Mine have a bit of lip on the edge of the disc....car has done 110,000k's, I've had it for the last 9,000 of them, not sure if they've ever been replaced? Does braking performance start to go downhill, or what, when discs have reached min thickness?

I was looking at these for replacement, seem to be a good price from what I have seen.

http://www.ebay.com.au/itm/Nissan-Skyline-GTS-t-R33-R34-Front-RDA-Disc-Rotors-/110724245641?_trksid=p3286.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D3%26po%3DLVI%26ps%3D63%26clkid%3D2446644268996712129

anyone have any opinions on them, or know anywhere that does a better price? car is 100% street too btw, no track use

[boostn0199]

If you get brake shudder and also if you run your finger on the disks and its bumby there signs. Whether or not there at the point of no machining the brake place can tell you unless its really obvious that there gone your can safely say so. Yeah those disks in the link are fine, if your in melbourne try better brakes in mitcham great guy if you ever need exedy clutches or any brakes he will beat any price you give him.

[R31Nismoid]

No real other way to tell them to measure them.

That ebay seller can be trusted, a friend of mine - his parents run that. So you won't be done over.

However if you dont have a highly modded car - go the cheaper option:

http://www.ebay.com.au/itm/Nissan-Skyline-R33-R34-Slotted-Front-Disc-Brake-Rotors-/130561514711?pt=AU_Car_Parts_Accessories&hash=item1e66129cd7

Also then ensure you combine them with:

- Decent brake pads (either from same seller, or from a SAU Trader: gslrallysport)

- Fluid flush/change

And you'll get excellent braking performance at a reasonable cost.

[Moodles2]

Check the group buy section, last I checked there is an ongoing groupbuy for RDA rotors and pads etc.

[hardsteppa]

That ebay seller can be trusted, a friend of mine - his parents run that. So you won't be done over.

excellent to hear

R31Nismoid, so the cheaper slotted would be just as good you reckon? the others are more but look alot hotter lol

have done the fluid change, and running TRW pads at moment which seem ok?

If you get brake shudder and also if you run your finger on the disks and its bumby there signs. Whether or not there at the point of no machining

no brake shudder but definitely bumpy/minor grooving on disc surface. Not wanting to spend any money on the current discs though, would prefer to put it towards newies. Thanks for the tip, up in Cairns though, unless they do shipping...?

Edited August 31, 2011 by hardsteppa