Steel frame/half frame bikes. post em up!

[wonk333]

Anyone get a crack on their frame yet?

[slidewayz89]

What brand is that frame

[kweb636]

looks like your forks have dented the frame. how the hell does aluminum forks dent a steel frame???

[JohnnyP]

Originally Posted by kweb636

looks like your forks have dented the frame. how the hell does aluminum forks dent a steel frame???

You can dent steel tubing with a piece of wood if you hit it enough times, billet aluminum fork tubes is more then strong enough to do the same

[kweb636]

Would that cause the crack?

[CORESLITE]

Dayum.... no bueno!!

[wonk333]

This is the mig welded frame from Motodoc. I'm almost sure this crack developed from kangaroo hops. I was working on getting more height out of them the week I noticed it and my bike was bottoming out on both ends. I know all frames eventually crack but I was kinda bummed it happened after one season of riding. Just wanted to know if this has happened to anyone else and how should I fix this from happening again? Taking it to my welder tomorrow.

[762SPR]

Steel frames are stronger, but not indestructible. That frame obviously wasn't heat treated after welding, so the welds are hard and brittle. That's where and why the crack developed.

I would grind a champher on both sides of the crack and weld it up. Then grind it smooth if you care how it looks. Pretty easy fix.

[wonk333]

Would you brace it any?

[Atown1101]

Originally Posted by wonk333

Would you brace it any?

id put a triangle gusset in that spot and same as the other side