Stiff ti/steel post?

[ANAO]

My race rig for this season is going to be steel. I'm planning on throwing a Thomson Masterpiece on there, but what if I could put some stiff ti or steel on?

Is there such a thing?

27.2, slight offset.

[weisan]

Yes, 16mm setback.

http://www.masherz.com/images/productpics/thomson/eliteseatpostsetbackbig.jpg

[ANAO]

Titanium or steel alternative, though?

Thomson is my current plan.

[Gummee]

Depending on how much* seatpost you have showing, Ti, AL, etc are all going to feel the same.

Once you get enough* seatpost sticking out of the frame, THEN you introduce the flex of Ti into the equation.

M

*I don't have a definitive answer for 'when Ti starts flexing' but I've run the same Dean Ti post on several bikes since I bought it way back when. When I have it in a road frame with minimal SP (10-12cm) above the TT, it feels like a seatpost. When I'm running it on a mtn bike with lots (10-12") of SP above the TT, you can feel the slight flex. Takes the edge of bumps.

[happycampyer]

You can get an Eriksen seatpost in a custom setback. I think the standard setback is 20mm. Ti posts are pretty stiff--there was a Velo test a while back and the Moots posts were among the stiffest. I would imagine an Eriksen post would be similarly stiff.

[MattTuck]

You can get an Eriksen seatpost in a custom setback. I think the standard setback is 20mm. Ti posts are pretty stiff--there was a Velo test a while back and the Moots posts were among the stiffest. I would imagine an Eriksen post would be similarly stiff.

Yep, these are the two that I'd suggest looking into. Although Firefly and Seven also makes Ti seat posts.

[Nooch]

If you wanted a steel seat post, and if it's not too late, why not just ask the builder to go ISP for you?

If there's a concern about resale later on you could always lob it off and slot it and go with a traditional seat post..

[ANAO]

If you wanted a steel seat post, and if it's not too late, why not just ask the builder to go ISP for you?

If there's a concern about resale later on you could always lob it off and slot it and go with a traditional seat post..

I don't like the look or lack of functionality ISP offers. I'm always nervous I'm still growing.

I fear the commitment.

[AngryScientist]

so what's the new bike?

unless the builder of your new bike offers a handmade seatpost, there is no reason to look beyond eriksen or moots IMO.

[thegunner]

I don't like the look or lack of functionality ISP offers. I'm always nervous I'm still growing.

I fear the commitment.

You are absurd, you're 27 now right?

[ANAO]

You are absurd, you're 27 now right?

No that's you. I'm not quite.

[tumbler]

You can get an Eriksen seatpost in a custom setback. I think the standard setback is 20mm. Ti posts are pretty stiff--there was a Velo test a while back and the Moots posts were among the stiffest. I would imagine an Eriksen post would be similarly stiff.

I think this (http://velonews.competitor.com/2012/12/training-center/technology/from-the-pages-of-velo-getting-the-most-from-your-post_267560/3) is the test you are referring to. It looks like the Ritchey WCS Carbon 0 setback is your answer for maximum pain.

http://cdn.velonews.competitor.com/files/2012/12/postbar-748x282.jpg

[thegunner]

No that's you. I'm not quite.

if you manage to grow another 1/2 cm in your lifetime, lemme know.

[ANAO]

if you manage to grow another 1/2 cm in your lifetime, lemme know.

I'm not saying an ISP isn't great for some people.

Personally, I don't care for it.

[joosttx]

Really liked the deda zero 100.

[thegunner]

I'm not saying an ISP isn't great for some people.

Personally, I don't care for it.

the other reasons made sense, that last one was a stretch :p

[ANAO]

the other reasons made sense, that last one was a stretch :p

I'm just trying to lighten up your day. The world of a programmer is a serious one, I hear?

[AngryScientist]

so....what's the frame in question?

[ANAO]

so....what's the frame in question?

http://www.preferredmode.com/wp-content/uploads/2014/08/IMG_9143.jpg

[sandyrs]

Does anyone even make steel seatposts anymore?

[ANAO]

Does anyone even make steel seatposts anymore?

Billy said he could make me one, but it wouldn't be better than a masterpiece.

[Peter P.]

Nobody I know makes a production steel seatpost, at least a quality one.

And as has already been pointed out, for identical dimensions, a titanium seatpost will flex more than aluminum. It CAN be made as stiff as a steel post but you'll lose the weight savings titanium is touted for.

Too bad you already are committed to a frame. I would have recommended a frame built with an oversized seat tube so you could use a larger diameter seatpost. Small increments in diameter lead to significant increases in stiffness, i.e., a 3mm increase in diameter from 27.2 to 28.6 is substantial.

Good luck with your search.

[thegunner]

i feel like i'd rather lose the stiffness with the variety i'd gain by going with 27.2 and not 28.6 :fight:

[DRietz]

Stiff=oversized carbon or aluminum.

Confused as to why you would want a titanium seatpost if you want stiff.

[happycampyer]

Stiff=oversized carbon or aluminum.

Confused as to why you would want a titanium seatpost if you want stiff.If you look at the stiffness test that I was referring to and that tumbler linked to, the Moots posts are actually as stiff if not stiffer than a lot of carbon posts. The OP said he needed a 27.2mm post, so an oversized post in any material isn't an option. In any case, I know from experience that the oversized Moots post (30.9mm) is super stiff.

http://cdn.velonews.competitor.com/files/2012/12/deflection2-395x440.jpg

http://cdn.velonews.competitor.com/files/2012/12/postbar-748x282.jpg

[DRietz]

If you look at the stiffness test that I was referring to and that tumbler linked to, the Moots posts are actually as stiff if not stiffer than a lot of carbon posts. The OP said he needed a 27.2mm post, so an oversized post in any material isn't an option. In any case, I know from experience that the oversized Moots post (30.9mm) is super stiff.

Right, yeah, I saw those (and have for the 4 years they've been available). I was offering a broader form of an answer, with more than a little bit of well hidden cynicism.

Titanium posts flex a LOT if a fair amount is exposed in a narrow diameter (like 27.2). This is purely anecdotal, but my titanium layback post always felt better on my hardtail than carbon posts, and I'm weighing in at a whopping 130.

In actuality, why exactly would you need a stiffer seatpost? I guess I'm just confused about the premise of the whole thing to really be all that productive in terms of helping.

[sandyrs]

If you want your seatpost to be stiff have him build you the frame with a horizontal top tube

[kobetsang]

I'm not a fan of ISP either. More trouble than it's worth.