deutschland-dobson

Gents,

Reading old threads im confused on what is the thickest spacer that can be used on standard thread sizes and without moving to hub-centric spacers.

Is it 5mm or 7mm? I've got plenty arch room for either.

Anyone using either without issue?

Thanks again!

Chris

Silvertarga

I am using 7mm all around..they do have a slight lip for the hub, using original studs and lug nuts, no issues for over 2 years..

Marc Shaw

IIRC, 5 mm is about the thickest you can get away with but safest might be to put on the spacer you plan to use and screw-on an open top lug to ensure all the threads are engaged.

Marc

deutschland-dobson

Thanks gents

Chris

VR6-er

Mount the wheel with the spacer and use an open headed nut. If the nut screws on flush or past the top of the stud you are ok. Anything less and I'd be concerned.

cobalt

I would not go over 5mm. The centering hub is 7mm and unless you can get a spacer with a centering hub I would not run a spacer especially on the track. The only 7mm centering hub spacer I am aware of is made by Ruf and they run around $400 a set. Also 7mm is pushing the studs and is at the edge of comfort. I would recommend replacing the studs with longer ones if you go for more than 5mm.

VR6-er

Some centering rings are completely round (item 8 in the first pic) and others are segmented into three sections (item 9 in the second pic). I have picked up a spacer with the 3 spigots. I've seen 964 hubs with completely round and segmented rings. Anyone know the if this was random or is there a perticular type of car that got this? I haven't had my wheels off yet so dont know what I have.

brad@tirerack.com

I won't sell 7mm without longer bolts. 5 you may get away with. The cars use a 14x1.5mm thread pitch. For that pitch you have to get at least 7.5 complete turns from thread engagement to be OK. Every wheel is different in terms of lug hole depth, so it's a significant spec to keep in mind when tightening the wheel down.

http://www.tirerack.com/wheels/tech/...jsp?techid=107

oldtimer

Agree with other posters that 7mm spacer too much for standard studs , using open top steel nuts you can see that top 5mm of nut is not in use . With no spacer there's about 2mm projection of stud beyond nut on the wheels I use. The spacer I have is made by Cargraphic ( German) and is flat , no retaining lug.
Must confess that I used that spacer with alloy closed top nuts for several years on trackdays.....could have been a deadly combination of alloy thread ( nuts) + insufficient threads engaged.

jcs_911

I have longer studs and 7mm spacers on the rear, with Fikse wheels, and the open steel nuts are pretty much flush with the end of the studs when installed. I can't see how you could use much of a spacer with the OE studs, if you could even use one at all.

deutschland-dobson

I'll just go with 5mm and if it still needs more I'll buy a hubcentric set

Chris