[disclosednot]

Okay I have an Iron Horse Marauder. The official seat post size is 26.4 I was wondering if it could fit a 26.8. Anybody got any experience with this. 26.4 is hard to track down. I would do 26.4 but I can't find any nice seatpost in this size.

Josh

 

[WTGPhoben]

well, in theory you could sand down a seatpost or the frame but losing .4mm of material from either would be a pretty bad idea. It would also be hard to sand evenly.

If you can find a seatpost you want with a smaller size, I'd say buy it and shim it.

 

[amateur]

Originally posted by WTGPhoben
If you can find a seatpost you want with a smaller size, I'd say buy it and shim it.

that'd be my suggestion. i think losing .4mm of metal will make a big difference, but it also depends how much exposed post and the angle of it.

 

[oldfart]

No. You can't do it. It might be posible to ream out the seat tube IF the wall thickness can handle it, but you'll need a frame builder or some one knowledgable about the strengths of your frame to tell you. Another option might be to get a machine shop to make a shaft for you and which you can attach a good seatpost head to. Just not sure where you can get a good seatpost head already made.

 

[spincrazy]

On the subject of posts and shims, where might one get a shim? I've a nice Thomson post I'd like to use but it's .2 too small. Would my lbs have one?

 

[Brian HCM#1]

Originally posted by disclosednot
Okay I have an Iron Horse Marauder. The official seat post size is 26.4 I was wondering if it could fit a 26.8. Anybody got any experience with this. 26.4 is hard to track down. I would do 26.4 but I can't find any nice seatpost in this size.

Josh

Looking in my BTI catalog the only one I see thats the correct size is the Kalloy Uno that is a 26.4