The Most Complicated Bicycle Drivetrain In Existence

I used two bike frames to construct a sturdy tall bike.
"Vibing Over Venus" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/b...
Credit to emzark for the thumbnail
0:00 Introduction
0:23 Disassembly
0:47 Preparation
2:55 Bike Frame Fit-up
1:53 Tack Welding
2:31 Welding
3:00 Front Bottom Bracket Fabrication
3:45 Cable Guide Fabrication
4:14 Paint Prep
4:18 Painting
4:32 Steering Tube Extension
4:53 Bearing Race Installation
5:13 Crank Installation
6:02 Steering tube Installation
6:21 Wheel Installation
6:28 Rear Derailleur
7:03 Break And Shifting Cable Installation
7:26 Drivetrain configuration
8:34 Bike Weight
8:50 Demonstration / Conclusion

[@fairwind8222]

Love tall bikes, that’s how my dad taught me welding when I was 10,

[@diegovelasquez6056]

Impressive

[@herbert633]

Great build, was thinking myself my tall bike would be nicer with fat tires and here it is. Agree with Frida, some more info on why you did the multi-bb solution would be interesting. Maybe a part earlier in the video where you kind of explain your vision (as it was originally) and then as you build you can walk us through how it changed due to constraints discovered during the build. My bike has the rear triangle of the top frame cut off, it's just dead weight. I think it could look cool to 'unfold' the chain/seat stays into one larger "seatstay" between the bottom triangle and the current spot. Thanks for sharing!

[@fridakelle]

Interesting Build. I was waiting for the part where you explain the need for a third crankset. Can't you just route the chain form the top to the bottom crankset?

[@DanielOzark]

It would normally be possible/ideal to route the top bracket directly to the bottom bracket. However, if I did that, the chain would contact and interfere with the bottom frame. This normally wouldn't happen on most tall bike builds, but I used a fatbike with unusual geometry.

[@HUKIT.]

Very cool project. But why not remove the top bikes chainstays for aesthetics?

[@DanielOzark]

Thanks for watching! I decided to keep the chainstays for the possibility of storing a water bottle and other spare tools. While there is already one water bottle mount, it interferes with the chain, making it unusable. Additionally, I believe the chainstays could possibly provide a bit of extra structural support to the seat tube.