Many tests have shown and also practise, that the most aerodynamic wheel is a disc. On upright bike TT races, tens of seconds can be won with discs, and comparing the other things you CAN do to decrease your air resistance, is the helmet, frame, suit, shoes etc, minor things. But since we are not making upright bike here, helmet and suit is irrelevant issue.
No question wheel aerodynamics is important issue, so lets buy an aero disc ...ok..what are we talking about? Let's first see the requirements we have. Let's assume that the regular 8-10 cassette is too wide and you keep banging your leg into it causing driving to be impossible, whats our next step? narrow the hub and make it single speed. How about disc brakes you want to use? no problem.. ok..we might find something to cover our requirements so far, but when we add one thing, 24" size, we have no options left. Even that world seems to be full of bike components and all the variations you might think of, thats hardly so. Bike world stands on standards and compatibility. Also the usage limits the manufacturing, why build something what is not needed? But when we are buiding radical vehicle for radical usage, should we stick with the standard products?, in some items we should, but when there is not what we need? Thats why, lets create unique designs to perfectly suit to our purpose. Here is my few hours of work, and here are the specs so far:
Disc:
Size: 24"
Tyre: tubular 24" x 1"
construction: Carbon on honeycomb
hub:
construction: aluminium, thread-on freewheel, double-flange design, 6 bolt IS mount
bearings: double SKF 6000
freewheel: White Industries ENO, 1.37 x 24 tpi
weight: 260g inc bearings, (exc. axel & freewheel)
width: 60mm (exc. freewheel)
axle: 10mm
Offcourse this would mean that the gearing must be elsewhere, but it's to be seen later..
Also put some colourfull graphics to tease the imagination, text is just what came to my mind at first..
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