Thanks FC. From your link it's looking like maybe a Tufftrax from '91-ish.
I think I'll go have a look at the bike but unless the seller is willing to drop the price (a lot!) I'll have to walk away.
Was going to have a look at it yesterday but didn't bother, too busy with other things.
If it's still up for sale in a weeks time I might have a look, by then the seller might be prepared to come down in price a bit :?