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True, but the clearance is about 1 tenth of f**k all, so isn't going to matter. :)

Why did you run without spigots? One man's blind luck is another man's catastrophic failure, so I wouldn't go recommending people to run with spigots that don't fit or none at all! You might have got away with it, but you were very lucky IMO. Yeah the paint is looking more and more like what...

The wheels were torque checked when I left for Oulton Park in the evening and again in the pits the following morning before going out on circuit.

I'm going for AST 5100 with "track" set-up, so 80N/mm (456lb/in) front and 90N/mm (513lb/in) rear. I'll let you know what that's like on the road.. probably "FIRM". A low roll centre isn't the terrible thing that the internet makes it out to be.. sometimes it can be a very very nice thing to...

60Deg taper is basically an industry standard. Try buying a set of Grayston bolts / nuts and you'll see the only options are 60Deg taper or radius seat (obviously the latter are for radiused seat wheels, never for a conical seat). A tapered seat shouldn't be relied on for centering the wheels...

Just got a call from Demon Tweeks saying they'll get Team Dynamics to machine up a set of metal spigot rings. So that will at least remove the chance that it was that the plastic ones that were to blame! I think I'll see if I can get a stud & nut kit as well, just for belt & braces. Does anyone...

Aye, but snapping bolts isn't the issue.. it's micro-movement of the wheel on the hub face causing the bolts to come undone. You don't have to shear the bolts for them to fail, just have to have enough repeated small movements of the hub / wheel interface for them to start coming undone...

I do indeed! :) The high torque on the wheels is irrelevant in this case, though; that was a last resort at the end of the day, done out of frustration. At the beginning of the day they were at 110Nm. Hahaha well braking force is the highest loading on any vehicle so I could have 1,000...

Double post!

No, they' aren't! They're only supposed to be loaded in tension. :) I've spoken to the hub & bearings engineer and a couple of other engineers at work and they all agreed that failure of the spigot can lead to micro-movement of the wheel / hub clamp interface, and that then leads to torque...

I'm really sorry guys but I don't think that's right! Wheels are subject to huge accelerations and shock loading from bumps in the road and from gaining and losing traction (such as a wheelspin or lock-up) so a clamp interface isn't going to be enough to stop micro-movement under these loads...

Thanks for the picture.. do you mind if I use it in my emails to Demon Tweeks / Team Dynamics while I try and sort it out, to show that the rings are known to fail under track use? I will try a stud and nut kit, but won't be able to do it in time for the 'ring! :(

That isn't true, I'm afraid! The spigot is there to centralise the wheel to the hub, but also to take some of the load from braking / cornering (especially braking) so that you aren't solely relying on the clamp joint between wheel and hub. The spigot rings being loose means that the wheel can...

The spigot rings were sloppy on the hubs by 0.5-1.0mm so it was impossible to get the wheels centralised.. It was vibrating at speed as if the balance weights had all fallen off and wandering.. not excessively but noticeably, though it could have just been my paranoia!

I got my wheels back last night and had a look at them this evening, they've sent me a new set of the exact same spigot rings they had originally supplied - the ones they told me on the phone were the wrong ones! I'm at a loss as to what to do now.. if they've lied about that then I wonder if...

I'll be using DS1.11 on my hillclimb car as their torque / temp curve is very impressive at low temps. :) EBC pads - AVOID. Cheap brake discs - AVOID. I blew apart some brand new Renault front discs at Brands in the wet with CL RC5+.. hairline fractures and blow-outs all over the disc face! I...

I had originally said that I wanted them exchanged for OZ Ultraleggera and I would pay the difference, but they refused. They also refused an exchange for a new set with machined bores, and even refused a new set of the originals. The reason I got was that TD have inspected the wheels and found...

Was wondering whether anybody else had had problems with this, or if I'm being fed a load of BS.. I bought a brand new set of 15x7" Team Dynamics PR1.2 several weeks ago, and fitted them for the first time at Oulton Park on the 4th June. I had an absolutely miserable day, as the wheels came...

Passed. :clap:

No they never got back to me! I just phoned them and he said he hadn't spoken to VOSA, and that the document I showed them was just a "Matters of Testing" document, rather than an actual VOSA bulletin, so he won't listen to it. He tried telling me that the rear brakes had zero force, but that's...

Not yet, no. I'm going to go to another place and cable-tie it beforehand to avoid all this rubbish.

FFS.. I took it down for a re-test this morning and the guy has still failed it! I handed him the document about rear brake performance on these cars and he said he'd have to call VOSA on Monday to make sure it's legit. :banghead:

For anyone who's interested, Euro Car Parts have got the valve for £91.20 so I'm going to give that a go.

Thanks for the replies chaps. The guy said that you could turn the wheels with little effort, so it's probably likely that the compensator valve is fudged. I swapped the pads on August and checked that the pistons and sliders were free, so it can only really be that. How much is the compensator...

Evening all.. I know there are quite a few topics on this, but my 172 Cup has just failed on rear brake efficiency (RBT Service Brake Efficiency: 45%). I gather from all the old threads that there was a VOSA note to testers explaining that the Cups have poor rear braking, or something along...

Thanks! I'm also in Brentwood so keep your eyes peeled! :D

Thanks chaps! Yeah the 205 build is a biggie that's for sure! :D

Hello! Last weekend I bought this very tidy little 172 Cup off a member: It's my first Clio as I've always had 205 GTI's (currently own 2) but I have to say I absolutely love it! :D With a bit of luck and TLC it'll serve as a good runabout and will also be used to compete in Series...