How I make a Lucky 7 or Lazy 7

[10~18 Kustoms]

First off, a standard Lucky 7 is pretty easy, just take some 5/8" solid round rod, heat it till red with a torch and then bend it to the desired angle.

This works OK if you have a really old bike from the 20s or 30s that has a 5/8s seat tube. But for a later bike with a 13/16 seat tube you can either use a shim with one of these posts or here is how to make a L7 post that goes from 13/16s to 5/8s.

The other day I took a few pictures while making the Lazy 7 seat post for my Hiawatha Rat bike project. viewtopic.php?f=21&t=34935

Thought I'd share the how to:
I start with about 1 foot of 5/8" solid round rod, and a standard 13/16 seat post.

Insert the 5/8s rod into the bottom of the seat post.

Then tig weld around the seam between the two.

Then cut the extra 5/8s part off the old seat tube, and weld around the bottom.

Then, with a torch heat up the 5/8" rod till red hot and then with a large wrench or pipe bend to the desired angle.

Then finish off with a little grinding, sanding and brass brush work to give them a nice polished shine, or you can just leave them heat treated for a more rat rod look.

 

[KOTA]

EXACTLY the way I did for the seat post on my latest build. :wink:

 

[scrumblero]

yup same-same. I just cold bend mine.. :roll:

and if you drill a few holes in teh side of the old seatpost you can weld it through the holes so you cant see the bead .

 

[Dr. Tankenstein]

Marty,
If you've got the time and cash to buy parts, you could EASILY sell those here and on eBay. Sell them 'raw' or polished.
Easy funding for your build projects. :mrgreen:

Cheers!
Dr. T

 

[UTR1]

great how to....
probably redo mine soon...just did mine today but way different...kind like your way better...
it needs some cleaning up...but i think this will for now

 

[motopsyco]

great how to....
probably redo mine soon...just did mine today but way different...kind like your way better...
it needs some cleaning up...but i think this will for now

I made mine the same way you did, but I used an old floor jack handle It turns out that some of the $19.99 special floor jacks handles are made of 13/16" tubing with 1/8" thick walls.

Used a little bondo to make it smoother and called it done.

 

[UTR1]

cool that is a good idea motopsyco.... 8)

 

[10~18 Kustoms]

Marty,
If you've got the time and cash to buy parts, you could EASILY sell those here and on eBay. Sell them 'raw' or polished.
Easy funding for your build projects. :mrgreen:

Cheers!
Dr. T

Yes Dr. Tankenstein, they are available for sale custom made to what ever angle you want $15 - $20 each shipped on my website. http://www.1018kustoms.com/parts.html
But, I probably should make up a bunch when I get a little spare time and offer them in the For Sale section, would probably attract a little more attention.

 

[dangratsdan]

I just cold bend mine.. :roll:

Yup me too, I bend 'em cold, with a 5 foot cheater bar and a hole in the ground, with shims in the seat tube, holds my 220 pounds.

 

[B607]

Fat guy post. Solid 304 stainless. Gary