[ramstein-dh]

I have a project in mind about building a dh frame.
My question is about the steel i should use.
Would stainless be the better option or 4130 cromo?
Also what would be the correct thickness and diameter of material?
What size tube would i need for the head tube 1.1/8" and what size would i need it machining out too?
Also can the headtube , bottom bracket shell and lugs for the 12mm rear axle be bought.

Thanks for the advice

Jay

 

[jonKranked]

def 4130... but there's a weight penalty.

also, if you've never done any frame building before, i would highly recommend this:

http://www.henryjames.com/patman.html

 

[ramstein-dh]

def 4130... but there's a weight penalty.

also, if you've never done any frame building before, i would highly recommend this:

http://www.henryjames.com/patman.html

Thanks for the info buddy.
I'm going on a welding course soon to actually learn welding in general.
So will sort everything out.

Thanks again

Jay

 

[jonKranked]

Thanks for the info buddy.
I'm going on a welding course soon to actually learn welding in general.
So will sort everything out.

Thanks again

Jay

I've got a copy of that book, and even though my welding experience is effectively zilch, its good for understanding what goes into bike building and how geometry and material selection affect ride characteristics.