Damn right Oz can ID them, they are Watanabe foils, when the Beat came out they had a few makers jump in and make some special sets for the Beat, odd sizes etc. Mugen and Watanabe were the most popular, more so the Watanbe's because they were a fraction cheaper. They came in silver, black, red and white, all the Beat flavours...
Hope this clears it up.....I think there is a set of them on my home page in the how far can you go wheels section,a red set I think..
going price on auction these days is around the 50,000 mark, dependin of course of wear.
Oz, looks like centercaps are available here http://www.rs-watanabe.co.jp/pay/parts.htm
can you see which ones i need? (the translation programs just turn it to engrish!) and let me know the prices (looks like 1000 yen a set, but i may be wrong!)
Paul that price is each so the set would be like 4000, they also have a disclaimer on size fit too, but for 20 pounds thats cheap, I remeber one for my 850 costing me 9000 yen... Wanna glue them on tight when they get there....shall I add them to your mountain?