Whats the frame? Unless its really old ie from 1960s or earlier, its unlikely to be something so weird.
I'd ask how does the seller know its 25 TPI? Get him to double check that fact as its not a even an uncommon thread size (French and Swiss are 25.4 TPI)
Whats the frame? Unless its really old ie from 1960s or earlier, its unlikely to be something so weird.
I'd ask how does the seller know its 25 TPI? Get him to double check that fact as its not a even an uncommon thread size (French and Swiss are 25.4 TPI)