No argument about superiority of recumbent aerodynamics, Matt. Add to this comfort (seat doesn't crunch the gonads and neck isn't cricked by stretching back to view road ahead) and the only disadvantage is PERHAPS the visibility. How about a fibreglass pole which typically has flag but instead has a police-style rotating LED about 6 foot from the road? Would the battery drain be too great? I think not. I've not patented the idea, so feel free to exploit itrecumpence wrote:Yes, somewhat.
One thing to consider, as well, is the fact that a recumbent does not require any muscle input to hold your torso. Therefore, with a recumbent, you always have all your nervous system energy devoted to pedal power. With an upright bike, the most power is available when you stand up. But, that standing reduces your available power for pedalling. So, with a recumbent, you have maximum power available to the legs all the time. Then if you go with a lowracer, you have lower frontal area as well. That is why they are so fast.
Recumbents have poor visibility, though. It is hard (on a lowracer) to turn your head to look around. That is one of the main drawbacks.
This is what I did with unclaimed campagain signs.TylerDurden wrote:Coroplast is good stuff. Watch the heat though, it can get soft over 160F.
(The small sign shop in my town sells 4'x8' white for ~$15. )
This is the info I need to push me into action as I have been thinking on making aerodynamic shields for in front of the suspension fork and down down tube behind the front wheel.John in CR wrote: ↑Jul 29, 2008 12:58 pmOK, I've had it with the wind slowing me down. My good road routes put me directly into a headwind to start every ride. While it's great for the return trip, it's time to get sleeker. In addition to a small front fairing and a tailbox, I want to do some little things that will hopefully add up.
Tires- These knobby off-road tires have got to go. I don't like them in the curves anyway, and they must be a real aero thief too. Whenever I lift the tire off the ground for a spin test it's like I'm turning on a powerful fan.
Front suspension- I forget the exact relationship, but something I learned in my sailboat design research is that a cylindrical form has the same aero drag as proper foil that is 3-4 times thicker. I want to build some AL or fiberglass sleeves to turn those front shock housings into air foils, along with something similar for any exposed tubular shapes.
I guess it depends on how high your head is and such. It looks to me like you can sight down the slope of that fairing and not have your view obstructed any more than my my front basket.