seatpost size problem

[guybe]

I got a bit of problem with the seat post size, my local bike shop measure the the seat post size of my 1991 Kona Lavadome frame, and it was 26.8mm, last week I bought a new Kore seatpost with that size, tried to fit it in, it does fit but it's very tight and have to use force to get in, I only push it down less than half inch of the post in case I have to return it back to shop as I dont want to mark it, is there a way to make it easier to post to slide in better or should I look for a 26.6mm seat post?

I am a little stressed about this, any tips?

 

[orange71]

My Lava Dome that looked the same as yours was 26.4

 

[DeletedUser006]

Guy, not sure if helps but my 94 Cindercone,s are both 26.6, This was the racelight Kona Double butted Chromoly frame tube.

Cheers

J

 

[Anthony]

You shouldn't use that post. I suspect it needs a 26.6, but this is based on fallible memory and I can't be sure my 92 cinder Cone didn't use a 26.4. One other option is to buy a USE or equivalent and try various shims.

 

[guybe]

Thanks for the info, I guess the Kore seatpost will go back either ebay or here to sell it I have to look out for either 26.6 or 26.4 seat post, they seem pretty hard to find them in smaller sizes.

 

[orange71]

this is the purple Lava Dome isn't it? If so mine was same colour same year and 26.4

 

[guybe]

this is the purple Lava Dome isn't it? If so mine was same colour same year and 26.4

yes you are right, I think I go for 26.4 to be the safe side, just need to find one now in black andozed/satin finish.

 

[Anthony]

USE Alien plus shim just about your only option for 26.4, unless you can find one on here.

 

[billinjah]

is there much corrosion down there? tried some emery paper to clean it up?

 

[guybe]

is there much corrosion down there? tried some emery paper to clean it up?

Hi, I had the frame shot blasted all over the frame including in seat post tube, headset and bottom bracket, I think the seatpost is simply too big for the tube, I have to get a smaller one, I have put my finger in the seatpost tube and it's smooth.