I found out about the Roundtail bike while reading the latest issue of Popular Science.
This innovative bike has hollow steel hoops for rear stays, which are supposed to absorb vibration. The bike promises a smoother ride. It is eye-catching, that’s for sure.
Lou Tortola, the inventor, explains that tests show the bike absorbs shock better than traditional diamond frames. No doubt the tests are right as the hoops are like giant springs.
Many bikes have been built that solve this problem, and they’re traditional diamond frames. You can do it two ways — relax the head tube angle and lengthen the wheel base or use different frame materials. You can also use wider tires.
Of course they won’t grab your attention.