17 replies to this topic

[mini13]

scrub radius!

scrub angle indeed.....

[Spider]

I am not an engineer but after watching the video of the Civic R and looking at nicklouse's cutaway drawing it seems to me that if we return to reverse rims, where the extra width is on the inside of the wheel then the scrub radius would be reduced as the tyre centre is moved inboard slightly, or am I misunderstanding this?

 

Nope. You've nailed it.

 

It also more even loads the wheel bearings and ball joints too.

 

There's a whole raft of advantages to doing this, and in fact, if you look at most modern cars, this is exactly how they are, even the Metro done this way, though the full benefit wasn't exploited, I'm guessing because they didn't or wouldn't go to a floating brake caliper

[mini13]

to elaboprate on the aboveabout the metro, this is why they had those deeply inset rims, 44mm iirc

 

 

you can kinda see the difference even against MPI wheels which dont have a lot of offset

 

 

 

 

Edited by mini13, 19 March 2018 - 08:34 PM.