What size seatpost for new Appaloosa and Atlantis

[Joel Stern]

27.2 or 26.8? 

[Joel Stern]

I found it

On Thursday, July 16, 2020 at 10:19:40 AM UTC-4 Joel Stern wrote:

27.2 or 26.8? 

[Dave Johnston]

26.8, but they come shipped with a Kalloy seapost. I found the post it shipped with fit best and a different identical looking 26.8 Kalloy was so loose it could rattle. A Nitto was better than that but still loose enough to fall right in all the way to the saddle by gravity alone, but it seemed to tighten down securely.

-Dave

[Joel Stern]

Thanks Dave

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[Nick Payne]

On Friday, 17 July 2020 01:24:21 UTC+10, Dave Johnston wrote:

26.8, but they come shipped with a Kalloy seapost. I found the post it shipped with fit best and a different identical looking 26.8 Kalloy was so loose it could rattle. A Nitto was better than that but still loose enough to fall right in all the way to the saddle by gravity alone, but it seemed to tighten down securely.

On my Appaloosa, I had a nice NOS Suntour Superbe Pro 26.8 seatpost that I wanted to use (I put the provided Kalloy aside), but it was similarly a slightly loose fit, plus I also noticed that the inside of the seat tube wasn't completely round - before the seatpost clamp was completely tightened down, there was a slight gap on one side where the post entered the seat tube. As I also had a 27.0 Nitto seatpost, I got out my expanding 23.75-27.0 reamer and reamed the seattube to take the 27.0 Nitto post, which a) got rid of the looseness, and b) got rid of the non-roundness.

Nick

[Joel Stern]

Not great on a $1500 frame

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[Chris Birkenmaier]

When I bought my Joe A the seat post size spec didn’t come close. I needed to up the size of the post so that it would fit. I emailed Riv to let them know how far Off the size was.

[Joe Bernard]

I had this issue with several MIT Rivs and it seemed to be a problem with the stock 26.8 post. In every case that size Nitto fit perfect.