Urgently need to know Kona seatclamp size

Woz · Aug 21, 2013

Take the old clamp into a LBS and say "One like this please, but not f*ucked". I am an Engineer.

raidan73 · Aug 21, 2013

Splatter Paint":2rbzlvg9 said:
Come on then raidan73, tell us the size!

SP

Sorry SP I'll have to leave you hanging on a bit longer. My wife wanted to go out riding tonight so I had to take one off another bike for the time being!

RadNomad · Aug 22, 2013

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.

Click to expand...

Mmmm - could have sworn I said much the same this morning

Yup.. just giving a bit of background so it will enable anyone to get a result on any size tube..

raidan73 · Aug 22, 2013

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.

Splatter Paint · Aug 22, 2013

Interesting, I never considered the external butting. You learn something new every day.

SP

Andy R · Aug 22, 2013

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.

30mm is closer than 30.4mm.

And it will be 30mm, Kona never used 30.14mm...

Urgently need to know Kona seatclamp size

Woz

Old School Grand Master

raidan73

RadNomad

Senior Retro Guru

raidan73

Splatter Paint

Andy R

Senior Retro Guru

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