Seat Posts - Talk to me.

[Monkspeed]

I want to change my seatpost to a zero setback version.

I quite like this Thomson Elite inline model http://www.wiggle.co.uk/thomson-elite-inline-seat-post/

I've measured my current seatpost and it's diameter is around ~30.9mm

If I am out by a couple of hundreds of a mm will it still fit ok? e.g. if its 30.8 or 31.6 and I get a 30.9?
I can't see it making a difference but I thought I better check first.

Also, if you guys and girls can recommend something else which you think is better then by all means let me know.

Cheers

 

[smokeysmoo]

Whip your old one out, it might actually say at the bottom what size it is

 

[Scilly Suffolk]

Get some Vernier Calipers off Ebay, no more than a tenner for some good ones.

 

[Monkspeed]

wow, fastest response ever! cheers, its still loose so I'll check it now.

Thanks!

 

[Monkspeed]

29.8/350

Thanks chaps!
But I also like the idea of a Caliper, never can have too many tools eh

 

[paddy01]

Apropos of nothing much, but what are the benefits for each type of post, inline v layback post?

 

[Monkspeed]

OK I've changed my mind on which seatpost. I figured I might as well get a carbon one!

http://www.wiggle.co.uk/fsa-k-force-light-carbon-seat-post/

but they come in 27.2mm so I'm guessing I will need a shim
http://www.wiggle.co.uk/cane-creek-seat-post-shim/
outside 29.8, inside 27.2

Sound OK?

Apropos of nothing much, but what are the benefits for each type of post, inline v layback post?

Paddy, I'm getting it so I can bring the seat further forward as I have run out of adjustment, I am not really sure if there are any other reasons/benefits?

 

[Monkspeed]

Will I need a shim if I replace my current 29.8mm seatpost with a 27.2 carbon one?

Cheers.

 

[mickle]

Paddy, I'm getting it so I can bring the seat further forward as I have run out of adjustment, I am not really sure if there are any other reasons/benefits?

Don't buy a new seat post because your reach is too great, replace the handlebar stem.

 

[Monkspeed]

I've already replaced the stem. Any idea on if the seat post will need a shim?

 

[mickle]

You haven't replaced the stem enough.

Yes you'll need a shim.