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DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
http://www.xtrac.com/index.php
Another long time gearbox supplier is Quaife
http://www.quaife.co.uk/
DelWest is up near me in Valencia for valves, if you go in the lobby they have a little trophy from Yamaha thanking them in there supplying valves for Valentino Rossi's M-1.
http://delwestengineering.com/
Akrapovic supplies the skid plates for Factory Suzuki (at least they used too), and they still look the same to me.
http://www.akrapovic-carbon.com/en/Pages/default.aspx
Pankl for cranks (F-1 supplier) and they own CP-Carillo Rods, as seen on Millsaps scooter
http://www.pankl.com/Aftermarket.542.0.html
There's more if you want. Then there's guys like me that make prototype, one off, and short-run production parts for teams and aftermarket companies.
http://crankworks.com/index.php/sponsored-riders
I think you'll find a lot of places will do specific things, head work, gearbox, friction reducing coatings, etc. It takes a special guy to be good at all things. One of the guys I remember from the old days as an all around guy, welding, machining, dyno work, etc. was Dave Bush at Kendick Engineering. I personally think he's a dick, but I don't let personal feelings get in the way of being impressed by someones abilities. Oh and I forgot professional photographer too, as well as two stroke and four stroke engine and exhaust development.
Post a reply to: So who is it that really builds the motors of the stars?