As above,

Had a look on a few sites but can't seem to find any small enough.

Dave

5" is tiny!
motorbike fans maybe?

i think motorbike fans are about 6inch to 7inch, as i got a cbr600 fan here which is 7inch, which i used on my indy for a short while.

stuart

Why would you want a five inch fan for a radiator?

A single, 10in fan shifts three times more air than two 5 in. fans.

6 inch would do. Its because my rad is wide but only about 6 inches high so i thought two 5/6 inch fans would be ok?

Dave

2 6 inchers will be better than 1 12" in that case!
motorbikes are the way forward for you

you could try RS Components
http://uk.rs-online.com and search for fan. They will do fans up to 6"

I got a pair of new Yam R6 fans in the workshop.

I bougth them for a project I didn't finish.
Yours for £25 if you want them

David

WE have used two Aprilia RSV fans on our Phoenix. Cost £16 for the two on fleabay. They are made by SPAL and are very powerful.
Geoff.