Bill getting back to your question re the bearings in the link.....I think you would need to do away with the eccentrics, as there would not be enough room to install them. Or else if the eccentric could be machined down in diameter, so it could fit the ID of the bearings I used which I think was about 19 or 20 mm. The only thing the chief scrutineer was interested in was my exhaust, which he said looked too modern. My argument to that would be...how many Manx's out there have their original exhaust systems on, plus how many historic racers out there have their original suspension units......I think sometimes safety is more important than if an item is exactly period correct. How close is a NEW build Manx to an original.....They should be in a class of their own, I'll bet not to many have their original 45 HP output. So does this mean I could fit one of the Horners Irving Vincent engines into my bike and compete. My pockets aren't that deep, but it could be done.....I asked Cam Donald last weekend how he found riding John Treases Harley racer, and he said the handling and brakes where dangerous, which he is hoping to improve. And he is trying to improve the reliability of the engine, which is so highly tuned, that it struggles to finish a race, but he said it had between 120 and 130 HP at the back wheel.....!!! Now where's that spare Irving Vincent engine...? This is the bike that the Horners and I will be competing against next January at Phillip Island....I'll just give Casey Stoner a call and see if he's free that weekend.....