Splatter Paint":2rbzlvg9 said:Come on then raidan73, tell us the size!
SP
Andy R":1k3944wx said:RadNomad":1k3944wx said:The mathematical constant Pi (3.142) is the relationship between a circle's diameter and circumference. Therefore simply measure the external circumference of the seat tube (if you don't have a flexible tape measure you can wrap some paper around and mark it, or use a bit of string) then divide that measurement by 3.142 to get the exact external diameter of the tube.
Mmmm - could have sworn I said much the same this morning
30mm is closer than 30.4mm.raidan73":1wf1uoph said:Well my best measuring using a piece of paper wrapped around the tube was 94.5mm which means I need a 30.14 clamp! The closest I can seem to find is 30.4mm so I'm guessing it will have to do.