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Any problems clamping aluminum frames in a workstand?(9 posts)

Any problems clamping aluminum frames in a workstand?swimbikerun75
Mar 27, 2002 10:02 AM
As is typical with road bikes, there's not usually enough seatpost showing to grab with the workstand, but do I dare clamp the seat tube? It's thicker than the top and down tubes, but thick enough. Columbus airplane tubing by the way.
I would't.Len J
Mar 27, 2002 10:14 AM
If you don't have enough seatpost showing, I would recommend the following:

1.) Park tool internal eat tube clamp (see link). This is made specifically for this.

http://www.excelsports.com/item.asp?major=6&minor=6&description=ISC%2D1+Internal+Seat+Tube+Clamp&vendorCode=PARK

2.) Get an old seatpost in the same diameter as yours. Mark your seatpost at the frame with a strip of tape (so you can reinsert to exact same place) remove seat & seatpost and replace with old one leaving enough to clamp to.

The worst thing you could do is crimp your frame to save a few bucks.

Len
why replace with old one?SteveO
Mar 27, 2002 11:09 AM
1. mark with tape (just keep it there always),
2. raise the post
3. Clamp in.

cant imagine you dont have enough spare seatpost for this not to work.
DOH, OK I'm awake now. NMLen J
Mar 27, 2002 11:45 AM
Just a thought...biknben
Mar 27, 2002 11:43 AM
If there is enough seat post in the seat tube why not just clamp the top of the seat tube. The post inside the seat tube will keep the frame from being crimped.

IMO the fear of crimping a seat tube is a bit of paranoia. Yes, I'm sure it has happened to people but I doubt it is as common as people think it is.
I've done it w/o a problempedaler98
Mar 27, 2002 1:33 PM
I have a pinarello paris that i have put in a workstand. i usually clamp as high up on the seatpost as i can i'm really anal so i always wrap a towel around first and then i make sure the clamp is not going to really clamp supertight---just enought to keep the bike from moving---never crimped anything
i meant seat tube in that last post....pedaler98
Mar 27, 2002 1:34 PM
the real worryRideLots
Mar 27, 2002 2:35 PM
I think the real worry is not so much the clamping itself, but crimping the tubing when you torque down on a pedal or bottom bracket. That, I would be careful about. When I do pedals or bb's, I take the bike out of the stand and put it in my trainer to hold securely.
re: Any problems clamping aluminum frames in a workstand?mhinman
Mar 28, 2002 3:58 AM
For quick work like lubing the chain, where you don't need the bike to hold real still. Just hook the nose of the saddle over the repair stand arm. That way you don't have to comstantly raise and lower the seatpost to clamp it.