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Skaala
04-19-2006, 07:44 PM
look at the abuse they put these rims through

http://www.german-wheels.com/produkt...nox/video3.php
http://www.german-wheels.com/produkte/radinox/video.php

WARNING: No rims were hurt during filming of there clips

DeMoN
04-19-2006, 08:15 PM
direct = hxxp://www.german-wheels.com/inhalt/schmidt2.wmv

gobs3z
04-19-2006, 08:26 PM
I assume they're magnesium and i'm not surprised.

antonioledesma
04-19-2006, 09:25 PM
must be magnesium or a special aluminum alloy

frodefe
04-20-2006, 12:17 AM
Not exactly scientific - but entertaining.
- are these rims much stronger than other rims?

ZfrkS62
04-20-2006, 12:32 AM
hahahahaha! We use almost the exact same wheel balancer at work :lol:

coombsie66
04-20-2006, 04:53 PM
LOL, ok think about the kind of force that you can apply to the rim in each of those tests, i wont even start to consider the 'piece of wood test' that bar is aluminium and thin walled (judged by the shape and side of the defects in it after its hit the rim) and the bar is the thing that deforms, hence you use a softer material than the wheel is made of, not difficult. The concrete slab, they are brittle as fuck anyway, and the way he hits it with the wheel has spread the load across the face of it so bugger all stress on the rim there.

Consider what wheels should be able to put up with, the full cornering weight of a car (if you considered full weight transfer, an assumption) would be almost a tonne on large cars, and if you then coupled that with a 5G curb strike (racing curbs not road big buggers!) then your looking at nearly 5 tonnes of force distributed around only a very small portion of the rim. These tests prove absolutely bugger all!!

Now a real test is what the makers of carbon fibre rims for quads do. Bolt the rim to the top of a 20 foot pole, pivoted on the ground, hoist it up and let it drop, the wheel rim bounces fuckign miles!! They repeat the test with an alloy rim and lest say it doesnt exactly bounce! :wink:

I was expecting to see these guys driving up a curb at speed or something...

caneswell
04-20-2006, 05:37 PM
LOL, ok think about the kind of force that you can apply to the rim in each of those tests, i wont even start to consider the 'piece of wood test' that bar is aluminium and thin walled (judged by the shape and side of the defects in it after its hit the rim) and the bar is the thing that deforms, hence you use a softer material than the wheel is made of, not difficult. The concrete slab, they are brittle as fuck anyway, and the way he hits it with the wheel has spread the load across the face of it so bugger all stress on the rim there.

Consider what wheels should be able to put up with, the full cornering weight of a car (if you considered full weight transfer, an assumption) would be almost a tonne on large cars, and if you then coupled that with a 5G curb strike (racing curbs not road big buggers!) then your looking at nearly 5 tonnes of force distributed around only a very small portion of the rim. These tests prove absolutely bugger all!!

Now a real test is what the makers of carbon fibre rims for quads do. Bolt the rim to the top of a 20 foot pole, pivoted on the ground, hoist it up and let it drop, the wheel rim bounces fuckign miles!! They repeat the test with an alloy rim and lest say it doesnt exactly bounce! :wink:

I was expecting to see these guys driving up a curb at speed or something...

Fcuking Gimperial students! :P

You may have a point though!

Evo
04-20-2006, 05:40 PM
I was expecting to see these guys driving up a curb at speed or something...

Well if they don't want to do it they can send me one and I can do it for them.. I usually hit a curb on the side while parking and that's with out knowing.. but at least it's in the office car.. I am fully aware when I drive my own car.. :D

Anyway that might be forged steel but Commbsie66 does have a point.. if they did a test while the rim is on a car and hit a curb at low speed and nothing happen then it can be called super wheels..

gobs3z
04-20-2006, 05:50 PM
Have they made carbon fiber wheels yet for cars, whats the hold up. They're on bikes already and they aren't that expensive for what you're getting.

jon_s
04-20-2006, 05:50 PM
I take Coomb's point, but if they were the wheels on my car, I would be in a shop buying new ones lol

coombsie66
04-21-2006, 03:51 PM
I take Coomb's point, but if they were the wheels on my car, I would be in a shop buying new ones lol

You wouldnt be able to lift yours above your head to throw at a concrete slab in the first place! :P :wink: :wink: