Need help

[beer's bike mad]

Anyone know the size of sealed headset bearings I need for a claudbutler olympus xt 2006 7005 series as just got frame to build and only has one in so need new set

 

[mdvineng]

Measure the seats and go from there, it'll be a stud type for sure.

 

[beer's bike mad]

I know it's over size but not sure wt size think it may be a 1 1/2 but unsure