Bike designs using a drive shaft were tried at the turn of the century, but never caught on as the best form of power transmission bikes. I’m not sure why, because a lot of bikes were made with a drive shaft and bevel gears for a power train.
A Finnish company led by Tatu Lund has designed a beautiful drive shaft recumbent bike, shown below. It has disk brakes, a wonderful feature on a recumbent, fenders , a built in pack support, and rear suspension. As in all Finnish products, the design is a thing of beauty. Sells in the neighborhood of $3500.
The drive shaft goes inside the frame to the gear wheel, yet the rear wheel has suspension and moves up and down. Very impressive. The bottom bracket is a bit lower than the seat, so stopping and starting should be much easier than on my high race. Tatu says that the bike is designed for two demographics: those that are looking for increased speed, and those that are looking for increased comfort. Sounds like the same demographics that all recumbents appeal to. Mirage has 3 U.S. distributors, and if the bike rides as well as it looks, it should be a world beater!
Info about the company:
Br. Tatu Lund, CEO
MirageBikes (VAT ID: FI23497371)
+358 40 541 0900, Skype: tatu.lund
Ciera spent the summer in Rome in an architecture program sponsored by the U. of Idaho. While there, she traveled on various excursions to different parts of Italy. Throughout her visit, she took pictures of the bikes she saw in Italy, and assembled them into a single image as a gift for me. It has been so well received, a number people have asked for a print of the image. She has a list of the location where each bike was photographed.
Trike Asylum is a forum for discussion of trike issues, and its Steve Green’s blog about his travel and experiences with trikes.
I got a chance to try a new version of the lighted flagpole made by Arizona Whip. It has all 20 of the LEDs at the top end of the clear lexan flagpole, just under the flag. This version has blinking lights on one side, with the yellow ones blinking alternately with the red ones. The other side is red and yellow LEDs, on all the time. My neighbors who see me on my commute say I look like a UFO on my Catrike Speed. Excellent, that is just what I was going for!
Arizona Whip on Catrike Speed Recumbent Trike
The Arizona Whip in motion
The pic below is more or less what the Whip looks like coming down the road, but with a long shutter speed the LED lights leave streaks across the picture.
Ths Whip from the rear.
above, large chainwheels front and rear
small chainwheels front and rear
top view for chain allignment
front shifter cage when shift lever is hard against upper limit