You’ll never be stuck with a broken chain if you’re riding one of Dynamic Bicycle’s two-wheeled creations because they use a patented shaft drive system instead of the old chain and sprocket design.
Fort Worth, TX (WiredPRNews.com)—The innovative shaft drive system on all of Dynamic Bicycles’ bikes means that you’ll never get your pant leg caught between the chain and the sprocket and you’ll never be stuck somewhere with a broken chain. The gears, enclosed in sealed gearboxes, transmit power from the pedals to the rear wheel via a patented shaft drive.
The Dynamic Bicycle website states that the nearly-silent shifting system comes in seven or eight gear designs, which are equivalent to 17, and 20-speed chained bicycles, respectively. Another benefit listed in the website, especially for off-road riders, is that the enclosed shaft drive is 13” off the ground. Contrast this to derailleur-based chain drives where the exposed chain and gears typically sit 8” above the ground.
For off road riders who’ve ever had tall grass and other vegetation caught in the chain and sprocket and derailleur, the enclosed shaft drive system is a welcome change. This has been a consistent problem for off-road riders and Dynamic’s shaft drive changes that.
Power efficiency is another plus, according to the website’s page about shaft versus chain technology. It states that the power efficiency of chain bikes can be as low as 75% whereas the Dynamic Bicycle shaft drive is 94% efficient.
Another benefit of the shaft drive system is that pedaling is not required for shifting gears, according to the company’s website. So if you need to begin in a different gear, say, after coming to a quick stop, you can start in the right gear without having to move the pedals.
The manufacturer makes folding bikes, commuters, road cruisers, mountain bikes and hybrids in various styles and sizes.