Jaap's Niner RLT 9 Steel A.K.A. 11 speed is dead

Maybe it could be laser/water jet cut from sheet steel.

Great stuff,love to see modded frames!

Thanks! Any suggestions for further mods?

Bottle bosses? I don't know why no one has (yet) designed a frame that is literally covered in them. Just every frame tube covered in bosses all spaced at bottle cage distance.

You could have a super-stable bolt-on frame bag, bottles on your top tube, dry bags on your seat-stays, Stem Cell-type bags bolted on your head tube or at the back of the seat tube. Attach your dynamo-powered lights wherever you like. Unlimited rack options. You can have some sort of insane bolt-on fairings if you need to get aero. It would give you absurdly versatile luggage options. You get the idea.

I'm not saying you should necessarily go that far...

what was your thinking for bypassing the BB shell with the internal cable routing?
interested as i recently had a real fight with hydro cable routed through a BB shell with an oversize crank spindle - had to adapt a different BB sleeve to fit and got there eventually but it was a pita.

Theres a good story about the hambini BB, where he had to get past internal BB routing... great video with a lot of engineering know how... https://www.youtube.com/watch?v=1XXrVoF2TwY
@Jaap thanks for the explanation, interesting. Yep I did mean aluminium.

A few reasons for not going full internal:

First of all I'm running just an inner cable inside the downtube. The small tubes brazed into it have an outer cable stop at the end. And I really couldn't figure out how to run just an inner cable along the BB.

Also the Chris King BB cups cover the spot where the chain stays are welded to the BB shell. So there is no way to continue the cable through the BB shell into the chainstay.

On my road bike I had my di2 wires run through the PF30 BB shell and the room inside the shell was so little that it was really difficult to get the thin di2 wires past the BB sleeve, so really didn't think a 30mm spindle would leave enough room for an inner and outer cable inside regular PF30 shells.

So good to read up on this. Also quite nice to not have to text you because I want updates when I'm bored at work.

A lot of all the technical talk goes right over my head, but I’ve subbed cos this looks insane

Any updates?

Soon!

Build day today, unfortunately after supplying me with the wrong length spokes for 3 times Bike-components.de also supplied me with wrongly drilled rims (32 instead of 28). Hopefully I'll get the right rims this week so I can finally finish this!

Super cool, love the colour. You've inspired me to investigate a 11/12 speed bodge on a 10 speed shifter. The mechanism is really simple though not quite as simple as the 11 speed shifter.

Really interested to see 12 speed in action!

What ^^^ Said

Hahah awesome! This bike is going to see some action.

10 speed shifters have a complete shifter ring instead of the half moon in 11 speed shifters. And they are interchangeable between left and right, one half of the ring has 10 teeth (for 10 speed) and the other half 2 teeth (for a double front).

Theoretically you could add a tooth on both sides, creating SRAM 3X11 groupset. Which is very unique.

Yeah, ideally I would additively add a tooth or two at the bottom end, but that's way beyond my (non-existent) welding/machining/whatever abilities. Easier option might be to file down the ring at the top end to add an 11th gear but I think the plastic cable retainer bit interferes with the shifter then. So I'd have to bodge something up to solve that issue. Initial idea is to completely remove the cable head retainer bit, drill a hole through in the same place and put the cable head inside the plastic bit, which would allow me to put as many teeth on as I like. The only problem then is that I'd have to completely dismantle the shifter every time I want to change the cable, but replacing cables on these shifters is already a nightmare so that's not that big a deal.

What would be best would be to have a new ring 3D printed or machined out of a block of steel as that would allow me to slightly reduce the cable pull per shift to match an 11-speed cassette and also solve the problem of the weak aluminium teeth which break constantly. But I think that'd be prohibitively expensive. Might be worth getting a plastic one printed to try it out though.

this is fucking cool

can't wait to see this built up.

Correct rims have arrived. Will be finishing this on Saturday!

@everybody, Thanks guys!

@Jaap ride on sunday?!?!

Got family stuff on Sunday :(

This is taking longer than everybody would like.. But this time we really are in the home stretch.

All done! 12 speed in full swing.

I'll get some detail shots as soon as I get a better camera!

That is a lairy bike.