I bought a couple from them at retail. Oh well, win some....
Top Studio also released a few 'working' pe chain sets for Tamiya modern MotoGP kits a yr or so ago. If I recall, the TS ones were more exp than the Tamiyas. $45-50 US? Sim assembly methods. Both produce a fine scale m/c chain.
I assembled one of the Tamiya chains just to keep as a converstion piece/keepsake it's so nice. The other will go on the model. Great kit. Industrial photoetchers I deal w/ in the arch model biz are amazed w/ the assembled chain too. I plan on making one for my main pe guy for X-mas.
Hobby Design makes a pe detail set to build up the cylinder fins! Pretty cool.
Btw, the 166's tires! WAY too pointy right? Were these for a land speed record run? I've checked all my refs and the www and contemp pics show round cross section tires at the many races. The ones in the Honda museum also show round section tires. Where did Tamiya come up w/ those odd pointy crowned tires? Rounding them off on a lathe will destroy the tread detail.