Jeff2 Posted May 7, 2008 Posted May 7, 2008 I'm looking to spread my rear wheels by 19mm each side so that my current wheel tyer combo (205 wide) gives the impression of filling the wheel arch more fully. Spoke to a couple of people at our club meet yesterday who explained to this numpty that the wheel should fit over the raised part of the wheel hub so that you do not rely soley on the studs to support the wheel under load. I have since taken a wheel off to see how much of the centre raised part is showing to find that only 10mm protrudes from the hub. Also, the the raised part is 64mm dia and the recess in the wheel is 70mm so I can't se how the raised part of the hub is supporting the wheel in any way. I hope the above makes some sense to someone. The point of this post is to ask for any advice regarding rear wheel spacers. Can I just buy standard 19mm spacers and longer studs or do I need to have spacers specially made? Should I be doing it at all? Quote
Tigger Posted May 7, 2008 Posted May 7, 2008 Jeff, The reason for putting spacers on that are supported by the hub is because you will be putting more strain on the wheel bolts so it is a good idea to get spacers that are supported in the centre. I think they are called hub centric or concentric ... something like that. Also, you will need longer bolts too but I suppose you knew that? Tiggs Quote
Tom Frankland (T3OMF) Posted May 8, 2008 Posted May 8, 2008 Try this Westfield is not listed but im sure they make them, I was thinking about doing this my self on the rears. Lets us know how you get on Quote
Dargy Posted May 8, 2008 Posted May 8, 2008 Do a search on Hubcentric. Blatman has a link to performance driven got mine from there. Quote
Dave Posted May 8, 2008 Posted May 8, 2008 Don’t want to start a big drawn out debate and I'm sure Blatters will be along shortly BUT IMHO Hub centric spacers only make it easier to mount the wheel onto the car when using Bolts rather than studs. The increase in axial strength due to the ally lip, will be minimal and totally out weighed by the cost. It could be argued that longer studs and cheepo spacers are actually stronger, simpler and deffo a cheeper option. Stands back and waits for the deluge Quote
Blatman Posted May 8, 2008 Posted May 8, 2008 QUOTE It could be argued that longer studs and cheepo spacers are actually stronger, simpler and deffo a cheeper option. More leverage on a longer stud, with the weight further out. It might not be critical, but clamping forces notwithstanding, the longer unsupported stud *must* be taking more weight if the wheel is sitting further out. Plus the spigot could well help keep the wheel central on the hub. And even if that's all rubbish, a solution exists that keeps all the fittings "standard", and for not that much "extra" money. Why wouldn't you if you can? Jeff... QUOTE Also, the the raised part is 64mm dia and the recess in the wheel is 70mm so I can't se how the raised part of the hub is supporting the wheel in any way. Sounds like you have Peugeot wheels and you're right, the centre spigot bore is doing nothing by way of support or location. You can buy spigot rings that fit to the wheel (try Elite Wheels in Rainham) but the inner section of the wheel will need machining. Elite Wheels did my Pug rims several years ago And as Dargy says I have a link to a supplier Quote
Jeff2 Posted May 8, 2008 Author Posted May 8, 2008 Thanks everyone, a lot to think about here. A mate of mine suggested getting the spacers machined to fit over the hub with the raised lip machined to fit the wheel, but that sounds expensive. I'll let you know what I decide to do. Thanks Jeff Quote
Jeff2 Posted May 10, 2008 Author Posted May 10, 2008 Interestingly, I have looked at costs of good quality H & R 20mm hubcentric spacers with hub rings to suit my Wolfrace wheels and the cost altogether is over £100. I can have the spacers specially machined out of stainless steel to suit hub and wheel for less. Apart from weight, which I presume is considerable, is there any other down side to SS spacers. Jeff Quote
Jeff2 Posted May 11, 2008 Author Posted May 11, 2008 Don't use SS, use ally... I wanted to use ally, but was concerned about strength. I wasn't sure if there are various grades of ally so I thought I would go for over kill. Jeff Quote
Blatman Posted May 12, 2008 Posted May 12, 2008 The wheels are ally... There are no strength issues to worry about using ally, but it may be worthwhile researching what grade of ally the spacer manufacturers use so that you can buy the same grade Quote
Mike H Posted May 12, 2008 Posted May 12, 2008 I had 4 hubcentric spacers made to my spec (to avoid plastic hub rings which eventually fall apart) by a local engineering firm - £100 for 4 from ally. btw I think the hub is slightly less than 64mm, maybe 63.8mm. Mike Quote
Justin R Posted May 16, 2008 Posted May 16, 2008 The main idea of a hubcentric spacer from my knowlege is that it ensures the wheel fits central to the hub. If you just use cheap 'shims' the play in the wheel holes means that you can attach the wheel back on but not totally central... Quote
pistonbroke Posted May 16, 2008 Posted May 16, 2008 Alli spacers would be in compression so strength aint an issue afaik Quote
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