古惑強

In the order of priority :

1. Weight
2. Weight
3. Weight
4. Weight
5. Weight
6. Weight
7. Weight
8. Weight
9. Weight
10. Weight

古惑強

條軨夠唔夠硬淨都應該係一個主要因素wor
raypoon 發表於 2009-7-10 13:04

I suppose so, but you won't know until you hit something.
A quality light weight wheel will bend and deform when it hits something hard.
A Taiwan copycat wheel will disintegrate under the same scenario.

古惑強

So, there are some basic points to think about:
1. Weight
2. Strength ( a good index to measure is Strength-to-weight ratio)
3. Ductility (Ability to flex)
4. Fatigue resistance

In good old da ...
paul 發表於 2009-7-10 17:40

1. Weight is most important, inertia mass of the wheel has 2x effects as compare to weight put on the chassis of the car during acceleration.
2. Strength, very important factor indeed, but unless you are going for super ultra light weight models, or you are putting low low low profile tyres on, you don't need to worry too much about it.
3. Ductility, it is a safety issue that if a wheel hit a hole or a kerb, a good one in the worst case will deform a bit, while the tyre will stay intact to ensure safety.  The not so good one will disintegrated, and the tyre will have a big risk of falling off.
4. Fatigue resistance, don't worry it, most will last longer than the cars.

古惑強

OZ  Ultraleggera
7x15"       
4,99 kg
PuntoPatrick 發表於 2009-7-10 13:04

Nice, Taiwan 15" copycat weights around 8kg.

古惑強

I guess the Taiwanese wheels are basically gravity or low pressure casting ones.

古惑強

Emm ....... I trust metal more than composite materials to form my wheels.