Comments on: Toka bike by Tobias Bernstein

By: Nick F

Nick F — Fri, 28 Sep 2012 13:04:32 +0000

If I had to guess, I’d say the inward tapering spokes are referencing an airplane propeller.

By: art

art — Thu, 27 Sep 2012 15:52:13 +0000

Those wheels are giving me flashbacks of detonated Rev-Xs. The frame/pivot design is very nice.

By: Woody

Woody — Thu, 27 Sep 2012 05:41:20 +0000

Looks to me (clearest in the 2nd picture) like the pivot plane is half way down the seat post almost horizontal but tilted to just above the front wheel hub.

By: David W

David W — Thu, 27 Sep 2012 04:55:28 +0000

The pivot plane would appear to be in the seat post,or halfway between crank and seat.It is a very crisp design.

By: carlos

carlos — Thu, 27 Sep 2012 01:43:47 +0000

Excelentes renders. Especialmente el primero.
Great renderings. Especilly the first one.

By: Ballo

Ballo — Thu, 27 Sep 2012 01:00:19 +0000

I’m interested if there is any rationale behind the spoke design. They narrow near the hub, reducing capacity for torque transfer via shear, and the offset bias suggests they would take braking in extra tension (good) but pedal forces in extra compression (not so good)
A folded image would be great too, as I can’t determine the pivot plane from the images.

By: Karl

Karl — Wed, 26 Sep 2012 17:09:45 +0000

any pictures of the folded bike?