Seatpost clamps

chrisga

Probably a stupid question but for seat post clamps are the sizes the next size up to your seatpost, so if my bike takes a 30.9 post (specialized) then do i need a 31.8mm seat clamp?

nicklouse

might do might not it depends on many things.

specialized list the sizes on their site.

Also it is often on the old clamp.

If the seat tube is a plain tube and you have a front mech fitted by band it is likley it will be a standard front mech band size. (not alwats though).

what is the M/M/Y of the bike)

oddy74

If you have the old one handy it should be written on the bottom.
My Rockhopper has a 30.9mm seatpost and takes 35mm seatpost clamp, but,
GF hardrock is also a 30.9mm seatpost but needs a bigger clamp.
Not sure if that helps?

Oddy

sniper68

Most spesh are 30.9 seatpost and 34.9 clamp

chrisga

Thanks guys.

nicklouse

so what is the bike or are you going to look on Spesh´s webby for the answer?

chrisga

enduro sl expert 2008. I took the clamp off last night and measured it as it didnt say on it anywhere. As close as I can see with my tape measure I think ibbo68 is correct. 34.9mm i think.

sniper68

chrisga wrote:

enduro sl expert 2008. I took the clamp off last night and measured it as it didnt say on it anywhere. As close as I can see with my tape measure I think ibbo68 is correct. 34.9mm i think.

I have the same bike and like all Enduros it is indeed 34.9mm,stock ones are crap,i replaced mine with a Hope straight away 8)