Rieger front lip?

[cferb]

Took me almost a year to get around to making the splitter I was talking about in this thread, lol

[Hon2BMW]

To my knowledge OE lips are not ABS, they're Urethane.

ABS or Acrylonitrile Butadiene Styrene Is still rather brittle and prone to cracking, though it tends to be more "Elastic" at low stress levels than the urethane you find in the OE parts which generally tends to be more "plastic".

For example, urethane bumpers are designed to absorb shock, they will deform, but more likely then not will never return 100% to their original shape. They are more "elastic" than metal but will absorb impact energy more effectively than ABS or other plastics which is why they are used in modern bumper coverings.

This deformation makes them less prone to cracking but also means there will always be evidence of the collision. ABS can flex a certain amount before it fails, if it stays below that threshold it will normally return to its original shape without much in the way of deformation.

If you've ever twisted a urethane part like they do in demonstrations you will notice it doesn't exactly go back to normal right away, and can crease irreversibly if you go to far.

Someone correct me if I am wrong.

[nando]

pretty sure they are not urethane - the plastic is more on the stiff end rather than the rubbery end. plus, they tend to crack when you run them over, not deform.

[E30Driv3R]

They are ABS Plastic and they do break easily....

200 down the drain in a month



i know i spelled rieger wrong...

[Hon2BMW]

pretty sure they are not urethane - the plastic is more on the stiff end rather than the rubbery end. plus, they tend to crack when you run them over, not deform.

I thought we were talking about the IS lip.

[nando]

I thought we were talking about the IS lip.

I was, actually. :p

could be wrong though, I sold mine to TJ ages ago