Lightweight Rims
Discussion
No info on prices, but for minimum weight you'll probably struggle to find lighter than genuine magnesium alloy Minilites. Expect them to be more expensive than common old aluminium though.
They do have a web site though don't know the URL off hand, but I'm sure you'll be able to find it.
Otherwise you might want to consider some three-piece jobs from Image. See www.imagewheels.co.uk
They do have a web site though don't know the URL off hand, but I'm sure you'll be able to find it.
Otherwise you might want to consider some three-piece jobs from Image. See www.imagewheels.co.uk
Depends what you mean by 'light', Mag minilites are certainly light, but not as light as your wallet will be. 
www.minilite.co.uk/
www.minilite.co.uk/
This should get you started:
www.wheelweights.net/
You will also want to consider the weight of your tyres. As I understand it, one of the main advantages of going for small rims / high profile tyres on a kit car is that the tyres are lighter than the rims so the overall package is lighter than big rims / low profiles. Of course this will be thrown out of the window if you spend a fortune on light rims then stick big lumps of rubber on them... Unfortunately, I can't find anything for weights of tyre although I'm sure I've seen something somewhere...
www.wheelweights.net/
You will also want to consider the weight of your tyres. As I understand it, one of the main advantages of going for small rims / high profile tyres on a kit car is that the tyres are lighter than the rims so the overall package is lighter than big rims / low profiles. Of course this will be thrown out of the window if you spend a fortune on light rims then stick big lumps of rubber on them... Unfortunately, I can't find anything for weights of tyre although I'm sure I've seen something somewhere...
ferg said:
So the Compomotives my Libra's dragging around add up to 112kgs 
Ummm, Compomotive MO 7*17's at 21.3lbs * 4 = 85.2lb / 2.2lb/kg = 38.7Kg.
Even allowing for the spare, it's only 48.4Kg.
Your maths the same down there Essex way as up here in the real world?
For a more accurate conversion, try Google's calculator: www.google.co.uk/search?q=85.2lb%20in%20kg&ie=UTF-8&oe=UTF-8&hl=en&btnG=Google+Search&meta=
Careful if you buy Compomotive, I had a set of CXR's from Polly Motorsport and they were badly fisished, the valve holes needed to be refinished and there was paint missing from bits of the rim. The outsides were painted OK but overall not what you expect for £100+vat each. Halfords cheapo wheel and tyre packages are better finished and presented.
)Fluke motorsport have some mean looking super lightweight rims for sale ...
www.fluke-motorsport.co.uk/products/index.html
bit pricey though.
www.fluke-motorsport.co.uk/products/index.html
bit pricey though.
The Fluke ones are made by MOG racing/RIAL in Germany. They pass TUV standards which for those of you that don't know are BLOODY HARD. They are light attractive and very well made.
I have heard of Compo CXRs being very badly finished and their attitude being very poor when they were confronted about it. The wheels in question looked like they could have been a refurbed set sold as new! There have also been a number of stress related failures with these.
I have heard of Compo CXRs being very badly finished and their attitude being very poor when they were confronted about it. The wheels in question looked like they could have been a refurbed set sold as new! There have also been a number of stress related failures with these.
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