Lengthening A Mongoose Motomag To 22":

[Shotgun]

I am going to lengthen this Mongoose Motomag to 22" to get a little more room.

 

[Shotgun]

I made a simple jig to locate the rear triangle and the head tube:

 

[Indyjps]

Didn't know you were over here too. Cant wait to see how this one turns out.

 

[RustyGold]

This should be cool!

Jason

 

[Shotgun]

Time to cut it!! I am going to use the head tube, gussets, and the back of the frame. The upper and lower tube as well as the seat tube will be replaced:

 

[LukeTheJoker]

Very cool!
Looking forward to more updates!

 

[Shotgun]

Time to start fitting some tubing.

 

[RustyGold]

Excellent idea for tube notcher!

Jason

 

[LukeTheJoker]

Looking good!

Handy hint is to click the show full size button after uploading your pics, that makes them easier for us to see!

 

[OneHorsePower]

nice work!

Excellent idea for tube notcher!

Jason

Great idea indeed! ima try to set something like this on my wood lathe

 

[Shotgun]

Welding has begun:

 

[RustyGold]

Looking good!

Jason

 

[Shotgun]

I am using an ancient Airco 250 amp Tig welder with a water cooled torch. The tubing is .058" x 1" OD. chrome moly:

 

[OneHorsePower]

welds look great so does the frame
you will re-chrome or paint ?

 

[RustyGold]

Very cool, can't wait to try something like this myself someday!

Jason

 

[Shotgun]

welds look great so does the frame
you will re-chrome or paint ?

This one is getting paint, with some of the original chrome.

 

[LukeTheJoker]

Looks great!

 

[kirkpatrick]

Dang! Now that's how you weld, I'm jealous, lol.

 

[Captain Awesome]

Very nice work!!

 

[Shotgun]

Time for paint. I am going to leave a few hints of the original chrome along with a nice shade of Rustoleum blue. I scuffed the rest of the chrome and used self etching primet.