Hulsroy's Hustle

Absolute fire.

"... so I will have to build an off-road tourer I guess."

This can only be a good thing.

42/15T

Strong legs!

I reckon it is good enough for flatish rides.
I felt my sscx race gearing 42/19 was too spinny. I have 16T as well but that requires a half link on the chain because of the dropouts. We are currently trying to redo the dropouts for the guy who provided them. They are unfortunately limiting the the cog options.

I would just do eccentric BBs.

Pffou niiice ! You're levers seems very inwards, your choice ?

Well I am not a big fan of those.
Dropouts should just have been longer.

Thanks. Yes. All my bikes are like that. Relaxes the wrists

Like this

1 Attachment

I am working on a hooded dropout for Stayer with built in M4 tensioner.

3 Attachments

Tolerances seem awfully tight ;)

Tolerances seem awfully tight ;)

Found the engineer.

Whats the point of hooded dropouts? Is it aesthetic? Looks like it'd be harder to get a spanner in the corner

Lateral stiffness. An L shape is so much stronger than an I shape.

Maybe "|" rather than "I" is a better example? :)

guilty as charged.

Thanks for the pic, I should try to add some angle to my levers.

Yeah man. Just a little bit will make your wrist happy.

A customer wanted track dropouts like the Bear ones we used for the sscx bikes. So Sam asked be to improve it based on the other as dropouts I have designed for him.
It is an aesthetic for sure. But ease of fabrication also makes it worth it as mitres are easy to do and easy to braze.
Re spanner: it might be annoying. Hence the 3D printing. The guy who wants the dropout is aware of this. Maybe he is using Allen key axles?

or he is using a socket head wrench?

Where is the chain stay supposed to be attached? If you're CNC'ing anyway, you could possibly loose some of the hood towards the bottom of the dropout to allow for better wrench access.

-Edit-
if I'm snarky it's only because it looks like you work on of my dream jobs.

There is room for a socket head wrench. That's one of the things that Bear dropouts didn't have.
The chainstay sits underneath the adjuster (which is not on the drawing).

Snarky is fine. I am self taught in most things so I share to learn. Although this is not a fabrication drawing it is just a sketch in rhino

1 Attachment

I just mention the tolerances as it is one of the thing that our teacher in engineering school go nuts over.

I'd consider a small chamfer on the inside of the hood. It will increase strength and most likely reduce machining time.

Anyways I'd much rather use a socket head wrench or ring type wrench with track dropouts than an open type.

Well, I feel the same. I struggle everyday with students not understanding tolerances, but as I said this is just a mock up.

I've been using Allen key bolts for ages, even brakeless. So much more practical than carrying a spanner everywhere, looks better and it's probably lighter too

It'll be used with Mack hubs, which are Allen bolt.

Aha. Exciting intell :)

Can't wait to tee the finished thing. Which tubes are you going for? T45 wishbone etc?