I have ordered 3 sets of studs made in the UK for me by
http://www.tkprecision.com/intro.htmSent over the old ones and they came up with a better metal and stronger design they can also do them in a special stainless used in the F1 cars.
Works out at about $16/stud which is probably cheaper than or close to the ex Yamaha price
Will let all know when they arrive, 1 set is going into my motor
