Marin seat post size?

[spitball]

What size seat post does a 91 Marin Muirwoods take please?, also what would be the correct post for this model?
Thanks in advance

 

[hamster]

If it's the same as my 1990 Palisades (which I think it is) then it's 26.2 and a vanilla Kalloy type. It's an unusual size, choice is seriously limited.

 

[spitball]

Thanks for the reply, I have a 94 bear valley which has a 27.2 seat post and that doesn't fit, I assumed someone had buggered up the seat tube, will look for a 26.2, you would have thought they would be the same, the O/D of the seat tube is.

 

[ljamesb]

Re:

I have a 1994 Marin Pine Mountain and the post size is 27.0. Could it be that your 1994 Bear Valley is also 27.0? Looking at the catalogue, I think the two bikes have used the same frame that year.

 

[spitball]

Re: Re:

I have a 1994 Marin Pine Mountain and the post size is 27.0. Could it be that your 1994 Bear Valley is also 27.0? Looking at the catalogue, I think the two bikes have used the same frame that year.

The 27.2 in the Bear Valley fits like it should, I would have thought a 27.2 in a 27 hole would feel like it was forced in and be tight

 

[ljamesb]

It could easily be different than my pine mountain. Just thought I'd say in case your post isn't labelled. Mine wasn't which led to me buying the wrong post (27.2) :facepalm:

 

[hamster]

Thanks for the reply, I have a 94 bear valley which has a 27.2 seat post and that doesn't fit, I assumed someone had buggered up the seat tube, will look for a 26.2, you would have thought they would be the same, the O/D of the seat tube is.

Yours is probably a Bear Valley SE, which shared the same frame as the Eldridge and Pine Mtn. The plain jane BV shared the Palisades frame.

My 94 Pine Mtn took a 26.8 from new. This is probably 27.0 nominal but had a bit of ovalizing of the seat tube from weld distortion. It's pretty common to see -0.2mm posts. It seems that rather than go to the cost of reaming out the seat tube they just popped in a smaller post.

 

[spitball]

I have just got back from a bike shop with a tool for measuring the hole, and it's a 26.8, so I have just ordered one.
Thanks for your help people

ps: AS for the Bear valley I don't think it's an SE, but some bits say it could be and others not, it's probably been robbed of the SE bits years ago.

 

[hamster]

The frame number will reveal all!

 

[spitball]

The frame number starts M54 which is a 94 bear valley I think? how do you tell if it's an SE?.