I need a seatpost clamp for this frame - looks to be 30mm external but that would suggest a 28.6 seatpost, right? There's nothing that would be 30 external and 27.2 internal?
It's a Roberts frame (no tubing decals to give a clue there) with seattube cut down before I got it as original top had cracked where overtightened. So .. a bit chicken& egg as have neither the clamp nor right size seatpost, only 27.2mm one which didn't seem that loose so now I'm a bit confused... Thanks in advance for any clarity.
I need a seatpost clamp for this frame - looks to be 30mm external but that would suggest a 28.6 seatpost, right? There's nothing that would be 30 external and 27.2 internal?
It's a Roberts frame (no tubing decals to give a clue there) with seattube cut down before I got it as original top had cracked where overtightened. So .. a bit chicken& egg as have neither the clamp nor right size seatpost, only 27.2mm one which didn't seem that loose so now I'm a bit confused... Thanks in advance for any clarity.