Standard unicycles aren’t very aerodynamic, because you’re sitting vertical on the seat. When you ride that thing, your position is more horizontal. I made picture of “new generation road unicycle”, to see what you guys think about my idea. It looks like common road bike, but it has only one wheel.
Edit: I hope Nimbus -08/-09 will look just like this and have gears.
Ps. I hate making new threads, but I didn’t find any old thread where I could have posted this.
Even when going as fast as possible on my KH29 I have not encountered serious wind resistance. My barrier to extra speed has always been the speed at witch I could spin the pedals around at. If I had a high ratio Guni then maybe aerodynamics would become important. Otherwise it is much more conductive to balance to just sit up strait. Just like your parent have always asked you to!
After putting in a retarded number of miles this season I can definitely say that this would be helpful. Not only would it help get the leverage in your favor a bit more, but consider headwinds. You are about 6 or more feet of “straight up in the air”…it sucks. This would really help cut through the wind a bit better than a standard rider or even a rider trying to lean into a T7 handle (which I’ve found to work but be very awkward feeling and looking on a straight frame).
just to clarify, when I say “This” would help…I mean the position you would end up being in (more aerodynamic like a road bike rider would be)…not the whole design in general as its obviously a shopped bike
I’ve not really formed an opinion of how much leaning into the T7 helps me aerodynamically. But it does make sense that it would help when it’s windy. Moreover, I generally find that adopting a slightly “tucked” position improves general comfort whilst cruising. For tricky stuff, or riding flat out fast I’d still want to sit upright for improved balance. But for high speed cruising, the tuck is plenty stable and results in a more agreeable weight distribution from a comfort point of view!
The problem with trying to get too much of a racing bicycle style fit is that bicycles don’t have to worry so much about the riders center of gravity staying over the pedaling axle. On a unicycle we do.
Take a look at the airbiking images here. Notice how the center of gravity of the rider changes as the bike goes uphill or downhill. The center of gravity of the rider also changes for different pedaling positions (in the saddle or out of the saddle).
Those sorts of large changes in center of gravity aren’t going to work for a unicyclist. For a unicycle you need to figure out how to get aero while keeping your center of gravity over the pedal spindle in different positions (uphill, downhill, seated, out of the saddle, pedaling hard, pedaling soft).
The seat on the shopped Trek unicycle is also too far back for keeping your center of gravity over the pedal spindle unless some sort of counterweight is added to the front of the unicycle.
Stand and lean forward in a bicycling style position. Notice how your butt will move back a few inches as you lean forward. That’s where the unicycle saddle should be if trying to achieve the same position. See the section on The Fore-Aft Saddle Position here in regards to bike fit for some more info (but keep in mind they’re only considering bicycling and not unicycling).
Lots of interesting opinions, some less informed than others. A tuck position gives you two advantages: less drag, and less weight on your crotch. But it is matched by the greater risk of eating it in a crash. The farther you bend over, the less power you have to resist, and react to, a forward dismount. If your body is already bent forward, you have little room to “suck the wheel forward” to regain your balance.
I have a handlebar setup on my Coker (with a Wyganowski handle) that allows for a slight tuck position, which is my preferred riding position. I want more. But I don’t know how much more. It took a while to get comfortable with what I’ve got now and feel safe. Ultimately I’d like a system where the handlebar is adjustable fore and aft, to find the optimum position.
I’ve never actually fallen whilst in a tuck, but that’s at least partly because I rarely use the tuck if I’m going flat out or riding on unpredictable surfaces. I like it for speedy cruising, where I’m trying to get somewhere, not having to avoid obstacles, and not going flat out. With the “mini tuck” I do, I feel reasonably confident safe, although the forward lean will impede my ability to correct the uni and also make it even more impossible to run out! That said, you need to roll out at high speed anyhow, so maybe I should try practising rolling out of a fall from a tucked position.
Now this is an interesting point. I find I can put both hands on the bars, tuck my elbows in to my waist and lean forward quite comfortably with my T7. But I’m a small guy. If I was a bit bigger I imagine there wouldn’t be room for me to get into this comfortable position. A T7-like design which could adjust for forward reach would perhaps let bigger guys achieve a similar position.
Another question is that of multiple hand positions. On a touring bike you want to be able to get multiple hand positions for reasons of comfort, as well as to be able to vary the amount of leverage you get whilst climbing. Even with a T7, the hand positions are fairly limited. I’ve personally not found this to be much of a problem for the distances I do, but I’d imagine that for uni touring it could get a bit uncomfortable. Pete’s (unisk8r’s) design looks like it might be somewhat better in this respect.
It would also be nice to see a handlebar unit that could both act as a “hopping” handle, close to the seat and as a touring handle for comfort.