Alloy wheel fitment question

[rumpelstiltskin]

Im restoring a Phase 1 Renault 5 turbo and i also bought a lot of phase 2 Renault 5 turbo spares from a guy.These spares included a set of alloys he told me were off a Phase 2 Renault 5 turbo.On these aftermarket alloys it has a measurement of 7j 15(inch)and on the original alloys that were on the car it has 5 and a half J.The wheels fit boltwise but i don't think im imagining this but the wheel centres don't seem to be quite resting against the hub centre?Will it be ok to fit them or is this 5 and a half J,7j a major difference?Cheers.

[kambites]

That just tells you that the new wheels are an inch and a half wider. It says nothing about the hub offset.

It should be fine as long as the wheels, when bolted on, clear everything easily, and will continue to clear everything when the suspension at full compression and full extension.


If the hub really isn't touching the wheel, there's something else wrong, though. Check that the circle in the centre of the hub isn't bigger than the circular hole in the centre of the wheel.

Edited by kambites on Tuesday 19th June 16:36

[Krikkit]

If the wheel doesn't sit right on the hub it's because the PCD (Pitch Circle Diameter) or centre bore is wrong. Don't fit them without an adapter to correct this, the wheel is supposed to engage fully with the hub, not just have the bolts holding it.

If the original had 5.5J and the new ones are 7J you might run into clearance issues as well, but that's just a measurement of the wheel width.

[E30M3SE]

Sound like they need spiogot rings.

[falkster]

You need to find the centre bore of your aftermarket wheels and get hubcentric rings to take up the difference between them and your hub.

[HorneyMX5]

E30M3SE said:

Sound like they need spiogot rings.

falkster said:

You need to find the centre bore of your aftermarket wheels and get hubcentric rings to take up the difference between them and your hub.

While spigot rings are useful for aligning the wheel bolts they are not that important in the grand scheme of things. Correct bolt/nut type with the correct taper are far more important for secure wheel fitment. As long as the face of the hub and the mounting face of the wheel are in contact and you have the correct nuts/bolts you're good to go.

nick

[rumpelstiltskin]

Fitting the 15 inch alloys there is a clearance issue with the caliper but i was going to fit spacers to resolve this.I'll look into the spigots,unless you get spacers that do the spigot job as well?I'll have a look,thanks for the replies so far.
P.S The wheel bolts/taper etc are fitting perfectly.

[E30M3SE]

HorneyMX5 said:

While spigot rings are useful for aligning the wheel bolts they are not that important in the grand scheme of things. Correct bolt/nut type with the correct taper are far more important for secure wheel fitment. As long as the face of the hub and the mounting face of the wheel are in contact and you have the correct nuts/bolts you're good to go.

nick

Not ime.

[falkster]

HorneyMX5 said:

While spigot rings are useful for aligning the wheel bolts they are not that important in the grand scheme of things. Correct bolt/nut type with the correct taper are far more important for secure wheel fitment. As long as the face of the hub and the mounting face of the wheel are in contact and you have the correct nuts/bolts you're good to go.

nick

Having had experience of using wheels with and without spigot rings I would always elect to use them. The wheel wobble I got from not was unbelievable and from what OP has said, his rims are more than a little bigger in the bore than standard. So while I understand where you're coming from spigot rings will take up all this slack and ensure his rim is centred rather than the gamble of fitting the rims without and hoping they're centred.

[Monty Python]

HorneyMX5 said:

While spigot rings are useful for aligning the wheel bolts they are not that important in the grand scheme of things. Correct bolt/nut type with the correct taper are far more important for secure wheel fitment. As long as the face of the hub and the mounting face of the wheel are in contact and you have the correct nuts/bolts you're good to go.

nick

I'm sorry but that's wrong - the hub is what stops the wheel moving around at speed - the wheel bolts are only there to secure the wheel to the hub. I did this in the past - fitted wheels without spigot rings and the steering vibrated like mad at any speed above 60mph.

http://www.performancealloys.com/orings.aspx

http://www.autoinparts.com/Wheel_nuts,_bolts,_lock...

http://www.hubcentric-rings.com/why_hub_centric_ri...

[falkster]

doogz said:

I've never used "spigot rings" before, I've always had wheels that fit properly, but aren't they made of plastic?

The poor quality ones are.

[E30M3SE]

doogz said:

I've never used "spigot rings" before, I've always had wheels that fit properly, but aren't they made of plastic?

Polymer or ali.

[HorneyMX5]

doogz said:

I've never used "spigot rings" before, I've always had wheels that fit properly, but aren't they made of plastic?

SOften they are, sometimes ali. They exist becuase a lot of after market wheels will have an oversized centre bore and then step down to the different spigot sizes of each brand of car. This is more cost effective and makes stock control easier when selling aftermarket wheels to multiple vehicles with the same PCD.

The spigot on a hub carries no load and is simply a lip to enable ease of wheel fitment, many vehicles don't even have a spigot lip. The load is taken up by the frictional grip of the two mounting surfaces when the wheel nuts/bolts are correctly torqued.

Nick

[Krikkit]

I've used plenty of plastic spigots without problems - they're hard enough, and the load is distributed enough, that they work well.

[HorneyMX5]

Monty Python said:

HorneyMX5 said:

While spigot rings are useful for aligning the wheel bolts they are not that important in the grand scheme of things. Correct bolt/nut type with the correct taper are far more important for secure wheel fitment. As long as the face of the hub and the mounting face of the wheel are in contact and you have the correct nuts/bolts you're good to go.

nick

I'm sorry but that's wrong - the hub is what stops the wheel moving around at speed - the wheel bolts are only there to secure the wheel to the hub. I did this in the past - fitted wheels without spigot rings and the steering vibrated like mad at any speed above 60mph.

http://www.performancealloys.com/orings.aspx

http://www.autoinparts.com/Wheel_nuts,_bolts,_lock...

http://www.hubcentric-rings.com/why_hub_centric_ri...

This is more likely don to the incorrect bolts o nuts being used. If you use the correctly tapered nuts/bolts and do them up in the correct order to the correct torque they pull the wheel into centre. This is why they are tapered!

falkster said:

HorneyMX5 said:

While spigot rings are useful for aligning the wheel bolts they are not that important in the grand scheme of things. Correct bolt/nut type with the correct taper are far more important for secure wheel fitment. As long as the face of the hub and the mounting face of the wheel are in contact and you have the correct nuts/bolts you're good to go.

nick

Having had experience of using wheels with and without spigot rings I would always elect to use them. The wheel wobble I got from not was unbelievable and from what OP has said, his rims are more than a little bigger in the bore than standard. So while I understand where you're coming from spigot rings will take up all this slack and ensure his rim is centred rather than the gamble of fitting the rims without and hoping they're centred.

Agreed, they are useful, I was just trying to point out the myth that your wheel will fall off and you'll die in a firey explosion if you run without them.

nick

[rumpelstiltskin]

HorneyMX5 said:

Agreed, they are useful, I was just trying to point out the myth that your wheel will fall off and you'll die in a firey explosion if you run without them.

nick

I've died in a firey explosion before and it wasn't pretty,not going there again damnit.