Page 1 of 1

Crimping compression fit lug bars

Posted: September 1st, 2021, 8:46 am
by mountaineer
Does anyone have tips on best way to “crimp” the tubes for compression fit lug bars?

When I put the bar in the tube and using tool to crimp. The indent is not tight enough. The bar slides through.

When I crimp without bar in the tube. It gets too tight and bar won’t slide through.

Thanks for your help.

Re: Crimping compression fit lug bars

Posted: September 1st, 2021, 8:50 am
by tafari
crimp them with feelings so it just enough to stay tight inside

Re: Crimping compression fit lug bars

Posted: September 1st, 2021, 9:26 am
by atkin68
I've experienced the same frustration. Using a somewhat sharper tool with the bar in the tube as worked for me. I use a small channel lock, but I turn the tube at about a 45 degree angle to the teeth so they bite in a little more. Have to give it a pretty good squeeze.

I'm also interested in hearing what others do.

Re: Crimping compression fit lug bars

Posted: September 1st, 2021, 9:58 am
by Yoda
I have used a stake in the staking set and simply made a "ding" in middle of the tube. I fitted a wooden pin inside to prevent the tube from collapsing.

Re: Crimping compression fit lug bars

Posted: September 1st, 2021, 10:53 am
by atkin68
Yoda wrote: September 1st, 2021, 9:58 am I have used a stake in the staking set and simply made a "ding" in middle of the tube. I fitted a wooden pin inside to prevent the tube from collapsing.
Genius :clap:

Re: Crimping compression fit lug bars

Posted: September 1st, 2021, 11:13 am
by mountaineer
I am glad it I am not the only one with this issue. I felt stupid to even ask.

A wooden rod is a good idea. It will give just enough.

Re: Crimping compression fit lug bars

Posted: September 1st, 2021, 11:24 am
by Yoda
I forgot to mention that I used bamboo as it doesn't break easily. A thinner steel rod will do the same, you will obtain the needed friction.

Re: Crimping compression fit lug bars

Posted: January 23rd, 2022, 2:31 pm
by Xtreme
You dont have to crimp a bar to hold in the tube just give the bar a SLIGHT bend in the middle.Easy, controlled, never moving