This is where I am compiling all of the attributes of my DreamCityBike. I’ll likely be updating this periodically.
Frame:
- Fitting at Cronometro
- Dutch bike geometry, with a bit of sport fit to it
- Low-ish bottom bracket for a lower overall ride, such that one could easily put one’s foot down at intersections?
- Semi-upright fit (but not sitting straight up like a “real” Dutch bike!)
- Reynolds 853?
- Folder? Bike Friday style?
- Adaptable to 23 – 38 mm tire widths
Brakes
- Coaster brake rear
- Disk brake front
Drive Train
- Shaft drive
- 7-14 speed rear hub (Rohloff? SRAM/Sachs/Shitmano/More info at Sheldon Brown’s or Hubstripping)
or,
- Chain drive Dual speed Schlumpf crank set (more description at Sheldon Brown’s) in combination with
- Hebie Chainglider 100% chain protection
- 7-14 speed rear hub (Rohloff? SRAM/Sachs/Shitmano/More info at Sheldon Brown’s or Hubstripping)
Wheels/front hub
- Adaptable 23mm-38mm width tires (i.e., able to handle Nokian studded tires)
- Suggestions on hubs/hoops?
Fenders
- Planet Bike Cascadia fenders
Handlebars
- Mustachio
- Possibility of adapting it to several different types of bars with easy switch-out using brake & gear cable coupling similar to that used on S & S coupler bikes
Lights/Road Visibility
- Planet Bike front/rear
My friend Wacky Pat adds all this wacky stuff for über-road viz:
- TireFlyes
- inductive blinkies (no batteries)
- DC LED light strings (or flashing strings)
- 3M reflective stick on
- Self-generating (inductive) LED pedals (no batteries)
Tires
- Open to suggestion….
- Searching for light, skinny & puncture-proof for spring/summer/fall
- Nokians for winter (of course)
Questions:
- Given the internal hub, and the lack of cogset/freewheel (whatever they call it these days), that should mean that there would be no requirement for dishing the rear wheel. That should mean greater integral strength of the wheel. Given that, could the wheel then be built with fewer spokes and achieve the same relative strength of a dished wheel?
- Might the resulting aerodynamic advantage cancel out some of the weight gain of the internal hub?
- Can the frame be made more linear in the rear triangle, i.e., rather than splaying out so much to accommodate all the cogs?
- Would the Rohloff be overkill in combination with the Schlumpf?
- By using coaster & disc brakes, can the walls of the rim be narrower?
Misc Links:
A Japanese dude who is apparently quite excited about his Schlumpf SpeedDrive on his Birdy folding bike.
VeloVision–A great bike mag about utilitarian bikes, city bikes, special purpose bikes, bikes for handicap, etc.
Marius Graber–Swiss journalist/bicycle analyst/developer; seems to geek out about folding bikes and alternative transmission systems.
VeloJournal–Swiss Bike Mag with an eye toward the technical, touring, utilitarian.
Comments
One response to “Traumstadtrad: Der Überkommuter”
[…] And that’s saying something, because as I’ve been waxing on & on about my Traumstadtrad, Pat has been sending me links to videos and sites just filled with new inventions applied to or […]