Karim....
"Kerb" or "kerbing" is the spelling for that part of the roadway where the
track, or road surface, meets the grass, dirt, or special concrete section
that one usually sees painted in red/white stripes.
"Curb" is also the U.S. spelling of "kerb" when used in an automotive
sense.
Confusing, I know! Safe to say that either is correct to use.
The same with "tires" (U.S. spelling) and "tyres" (general English
spelling).
--
Bruce.
"...and if you look back 4 seconds...no, 31 seconds...!"
(Murray Walker invents Time Travel, Imola, 27th. April 1997)
VRE: http://www.netspeed.com.au/brucek/vegemiteracing/index.htm
The STUNNED MULLET:
http://www.netspeed.com.au/brucek/StunnedMullet/index.htm