Truss Fork Material Selection

Hi everyone. I am planning to make a truss fork for my next cargo bike frame. I really like Oddity’s Squidfork design.

Squidfork

I’m thinking about simply using .75" or .625" x .035" straight gauge 4130. I could use .049" but I’m thinking that it will be overkill. Thoughts?

I think you should add a truss stem. There are several versions I’ve seen floating around, similar to this I saw recently.

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Very cool and interesting fork/handlebar design. It won’t work with what I have planned.
I am making a truss fork for my next cargo bike which will have no stem attached to the fork in a traditional way. I’m making an updated version of this:

I really like the way my bike rides and handles but I made some rookie mistakes in the construction. It was challenge to make and I would like to try again with something different to add up front.

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That is so awesome!

Love those Ursus Jumbo kickstands. I had some to hold up a beach cruiser with a baby seat: they are so amazing.

Did you ever end up making that Truss fork? curious what tubing you ended up using?

Yes, used 5/8” .035 chromoly. I have only rode it a few times, but it feels stout. I will have a better feeling for it once the weather gets better. Some pics of the process.

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That’s a rad looking fork! I’ve been toying with the idea of a truss fork for a few years. Just never get around to buying the supplies. It’d be more of a touring setup with a clamp above the head tube as well. I hope you update when you get some riding time.

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Is that stainless steel? What advantage does a truss fork bring?

It’s straight gauge 4130 tubing. It looks cool, can’t comment on how it compares strength wise.