ti hei hei's-seatpost diameter

[cjn1014]

hello from detroit....

did all ti hei hei's come spec'd with 27.0 seatposts, or was there a switch to 27.2's along the way?

 

[Wold Ranger]

Hei Hei

Believe all that period Kona's were 27.0mm, but some were more like 27.15, with a 27 slack and a 27.2 fittable but very tight, whats flavour year is yours?

 

[Anthony]

hello from detroit....
did all ti hei hei's come spec'd with 27.0 seatposts, or was there a switch to 27.2's along the way?

And hello to you too, from dull, overcast Hove on the South Coast of England

Kona were still specifying a 27.0 for the 2000 King Kahuna. As Wold Ranger says, the steel frames were a bit variable, specifying 27.0 but sometimes reamed out so it was very loose, but in fact this needn't apply to the Hei Hei.

The seat tube was a 34.9 and as I understand it that doesn't mean that the tube walls were (34.9 - 27.0)/2 = 3.95 thick or anything like it, but rather that there is an internal sleeve fitted - so it's the size of the sleeve that determines the seat post size and that may well be more accurate than a reamed-out steel seat tube.

 

[Caramba Kid]

My 1992 Hei hei is definitely 27.2 - Syncros Ti & Thomson Elite posts slides in easily & are in no way tight.

Should add that it's a 20" frame, so maybe increased post dia with frame size :?

 

[Neil G]

Mines a 1993/94 model....definately 27.2

 

[cjn1014]

mine will be a 99/00 (painted front end). looks like i need to find the elusive negative .2 shim

 

[alfabruce]

Ive just bought a 93. It came with a shitty 27.2 post which Ill be changing. Whats the best way to tell if its meant to be a 27.0 or 27.2. Is it just a matter of trying posts in there and seeing what works. If its tight does that mean it should be a 27.0 post? I put a 27.0 off my rock lobster in there and it still seems to tighten up OK.

 

[Splatter Paint]

You could use vernier calipers to measure the seat tube ID and seat post OD. My experience is that seatposts can vary in diameter from the claimed size, therefore getting the right post may be a bit of trial and error.

If a 27.2 goes in, I’d suggest the internal sleeve is worn, or someone has reamed it out to 27.2 or the 27.2 post is under-size.

Personally, I prefer a sliding fit, such that it doesn’t slip down when the clamp is open, I do use anti-seize on mine though!

 

[MuchAlohaNui]

My 1992 and 1994 are both 27.2

 

[alfabruce]

You could use vernier calipers to measure the seat tube ID and seat post OD. My experience is that seatposts can vary in diameter from the claimed size, therefore getting the right post may be a bit of trial and error.

If a 27.2 goes in, I’d suggest the internal sleeve is worn, or someone has reamed it out to 27.2 or the 27.2 post is under-size.

Personally, I prefer a sliding fit, such that it doesn’t slip down when the clamp is open, I do use anti-seize on mine though!

Yeah that makes sense re the sliding fit. Ill check it out.