BAR IDEAS

[Forest12]

Hey
im going to order 4130 chromoly metal for making home made bars but i dont know a good way to weld it together(crossbar to main stem)
how should i do it

 

[Hep Greg]

TIG Welding.

 

[Forest12]

whats that mean and no i have a welder but how should i have him weld it

 

[Snow Patrol]

if hes a welder he should know, its not rocket science mang.

make sure you let him know to get the right filler for it though. 4130 chromo in mind

 

[Forest12]

thanks john

 

[ryankeong]

scallop the steer tubbe out like cut a semi circle the same diameter as the bars on each side so the crosbar sits in there looks better and is stronger also add gusseta if u want

 

[Forest12]

ya i want to make diagnonal supports too but that could be hard

 

[ben-pat-bro]

no really if ya know wat you are doing

 

[idk47]

How to make one-piece 4130 Chromoly bars!
By Alex Iorio

One piece bars: 4130 chromoly from www.onlinemetals.com I'll post direct ]http://www.onlinemetals.com/merchant.cfm?pid=7333&step=4&showunits=inches&id=250&top_cat=0[/url]
Buy a 24" (2 foot) pre-cut piece and cut it yourself, you'll save a lot of money.

Steer column:
1.12" Inner Diameter, 0.065" wall
http://www.onlinemetals.com/merchant.cfm?pid=7341&step=4&showunits=inches&id=250&top_cat=0
Same as above, buy a 24" (2 foot) pre-cut piece and cut it yourself, you'll save a lot of money.

1. Use a 7/8 metal drill bit to drill a hole in the top of the steer column (through both sides), then cut that hole in half. This makes a nice notch for the crossbar to go in.
Now most people probably don't have a 7/8" drill bit for metal, so there is a different way to do it. Use a 1/2" drill bit and rotate it back and forth to make the 7/8" holes in both sides of the steer column.
2. Use a grinder saw thing and smooth out the holes, and make sure that the crossbar is level when you let it rest in the notch. A drill press helps for this part too.

3. Once the crossbar is completely level when you press it into the notch, you should grab a rubber mallet and go out into your driveway. You want to put your crossbar into the notch, and bang down the tabs so they are touching the crossbar and holding it in place. They have to be really tight and hold the bar completely still!

4. Center the crossbar in the notch and T-weld them in a handlebar jig/take them to a professional welder.
5. Drill an 11/64 hole in the bottom of the steer tube, about an inch and a half from the bottom. Use a jigsaw or hacksaw to cut a slit from the bottom of the tube to the hole. The slit should be in ONE SIDE ONLY!
6. Put on grips/barends and go ride