Here’s some pictures of a still hot fillet brazed bb shell. You will notice that the shell is for a Phil Wood eccentric bb. The other picture is of a part that has a working name of Das Knob. The soda can is mostly for scale. Can you guess what Das Knob does?
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This entry was posted on Thursday, January 21st, 2010 at 2:11 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
oversized front derailleur cable reversal pulley?
Nope.
shifter for a certain IGH
shifter
It looks kinda like a compression cap for a threadless headset, but I’m guessing that’s not it. That can of soda looks pretty interesting too…
Spencer Wright
Traffic Cycle Design
http://trafficbikes.com
A German threadless headset cap slash ashtray?
Ist ein Knob to tension the eccentric BB?
Rohloff shifter for downtube?
Looks like it pulls a cable, so a knob to engage a tire dynamo?
Looks similar to Rohloff shifter guts. Whatever it is, it’s interesting.
The top of a head set? But it looks about 4cm across…. Hmmm
Did I guess right?
You did but I think the prize goes to Jim for being the quickest on the draw. It is a down tube shifter for a Rohloff hub. I think it’s going to work great and I’m not aware of it having been done before. I might be wrong about that though. Regardless, it’s a more elegant solution for a Rohloff bike with drop bars than the factory twist grip. Pictures coming in the near future.
Cool! There’s a prize!
Exciting!– I thought about the same thing, but envisioned using a faucet knob from an antique tub on top of the shifter guts. Your solution is probably lots more practical in terms of not gouging one’s knees.
If it works, I hope you’ll license the design to someone like JTek or Paul to produce for general sale (I’m assuming you wouldn’t have time to do that yourself).
Very Interesting. One member posted a link to this page on the Yahoo Geared Hub Bikes group which is how I found out about it. I definitely think that there would be demand for such an item.
I suspect that with minor modification it would also work as a shifter for the NuVinci CVT hub which is also dual cable controlled.
I would like to get DAS NOB.
Even better would be something that worked with dropped bar brake levers.
Not sure why it would not work directly with a NuVinci; the Rohloff does the indexing back at the hub.
Michael Wilson