Tapered head tubes: Suppliers and mitering.

[David Tollefson]

Couple of questions in two areas, both regarding tapered 1.125/1.5 head tubes.

1) Suppliers for steel tapered head tubes. I know there's Nova, Deddachiai, and there was one posted a couple days ago (a MTB builder that I forgot to bookmark and can't find now -- anyone?). What others?

2) I don't have BikeCAD in front of me, as I'm at my day job, and the Nova tube notcher doesn't cover it... Those programs that pump out the paper templates for miters -- which one(s) will accommodate the tapered head tube? I could use the multi-million $$ CAD system at my day job during the off-times to generate a template, and I can see where there would be so many variables as to make it near impossible to program (how far from the end the down tube intersects, what the actual taper is on the HT, etc). Are there any out there?

TIA!

[timto]

Columbus makes this one
Solid BMX is marketing some too

Bike Cad can do a tapered head tube spec - it allows you to dimension the sections of the HT - taper length , diameters at top, bottom, top / bottom section length.

[Amaro Bikes]

Couple of questions in two areas, both regarding tapered 1.125/1.5 head tubes.

1) Suppliers for steel tapered head tubes. I know there's Nova, Deddachiai, and there was one posted a couple days ago (a MTB builder that I forgot to bookmark and can't find now -- anyone?). What others?

2) I don't have BikeCAD in front of me, as I'm at my day job, and the Nova tube notcher doesn't cover it... Those programs that pump out the paper templates for miters -- which one(s) will accommodate the tapered head tube? I could use the multi-million $$ CAD system at my day job during the off-times to generate a template, and I can see where there would be so many variables as to make it near impossible to program (how far from the end the down tube intersects, what the actual taper is on the HT, etc). Are there any out there?

TIA!

Apart from the tapered specific ones (columbus, deddacciai, etc), you can also use any of the 44mm ones (paragon, reynolds, etc) and combine zs44 top and ec44 low cups so to fit any tapered steering tube, which gives you much "easier" mitering if you're into templates.

Anyway, if you definetly want a "pure" tapered headtube shape, then have a tryo to do the mitering by hand-eye coordination and you'll see it's much more easy than thought, no templates needed, just a bit of practice/patience and you'll end up doing it as a memorized routine

Cheers

[shiggy]

Apart from the tapered specific ones (columbus, deddacciai, etc), you can also use any of the 44mm ones (paragon, reynolds, etc) and combine zs44 top and ec44 low cups so to fit any tapered steering tube, which gives you much "easier" mitering if you're into templates.

Anyway, if you definetly want a "pure" tapered headtube shape, then have a tryo to do the mitering by hand-eye coordination and you'll see it's much more easy than thought, no templates needed, just a bit of practice/patience and you'll end up doing it as a memorized routine

Cheers

This is where a full size frame drawing makes it easy.

[Albie]

We are additional stocking reinforcement rings for our tapered head tubes.

Pictures tomorrow.

Solid Bikes — Tapered Headtube Reinforcement Rings, 34/44

[David Tollefson]

We are additional stocking reinforcement rings for our tapered head tubes.

Pictures tomorrow.

Solid Bikes — Tapered Headtube Reinforcement Rings, 34/44

Sweet!