Fagro

I was wonder if any particular style/type of repair stand is better suited to carbon bikes,seatposts? I like the clamp style that grabs the seatpost, just not sure if its ok with carbon seatpost. I would prefer not to take the front wheel off like some stands require.
Any thoughts/experience?

fosmith

its ok to clamp the seatpost. if its a "normal" seatpost. Just don't go nuts with clamp pressure, and never clamp the frame.

Fagro

I have a Specialized Roubaix, carbon seatpost with the Zerts insert. I'm not sure what you mean by "normal".

pmt

You want one like this; it's guaranteed not to damage the bike, and makes it easy to work on.

https://parktool.com/products/detail....23&item=PRS-20

Fagro

I saw this style, though not in person, and I wasn't sure about the frame (BB area) sitting on there. Also didn't want to have to remove the front wheel, especially when cleaning.

HillRider

Buy a cheap metal seat post of the proper diameter and dedicate it to clamp in the work stand. A MTB length post will give you plenty of length to clamp to and can be stuck further down into the frame and may give better support too.

operator

I had that stand.

It's really ****ing annoying to have to remove the wheel and then use 2 more retention systems to secure the bike. It also makes it impossible to adjust front brakes on that stand.

operator

If any of your seatposts are not round this is the best clamp for general garden varieyt aero/non aero shape carbon posts -



There are very few seatposts this won't clamp around. We use this in the shop all the time on cheap $15 alloy posts to cervelo P4's.

Jed19

Bingo! We have a winner. I have an Ultimate work stand that clamps at the seatpost. I can clamp my Thomson aluminum seatpost without any problem. I Also got a discarded seatpost from my LBS that can be put in my seat tube and clamped, though there has not been any need to use it yet.

operator

This is seriously, not needed.

And definitley not a procedure suited for a shop environment.

HillRider

It can be needed if the regular seat post doesn't stick up far enough to let the clamp grab it. As long as you are going to change the height, why not replace it with something you can't hurt?

Actually Park makes (or made) a dedicated seat post replacement that expands to fit a variety of seat tube diameters and this is definitely a shop environment item. Since this is for personal use, one or two sizes of replacement seatposts should be adequate.

As you noted, newer frames with non-round posts or integrated posts are another problem entirely.

operator

That's my point though.

The extreme range clamp will do the vast majority of funky carbon seatpost designs out there. Almost none of the bikes that we see regularly ever require a seatpost/seat removal + installation of the internal clamp - simply shop time that cannot be wasted during the busy season and not necessary. We've never destroyed a customers seatpost nor damaged one and we see some really expensive seatposts/bikes $1.5k - $12K range.



For the average home mechanic... sure, time efficiency isn't as critical I guess and you can take every precaution you want to - but again, not necessary.

joejack951

I've read that carbon fiber explodes when clamped.