Scientists at Germany’s Fraunhofer Institute ISE and a consortium of heat pump manufacturers have achieved a new efficiency record in their development of a low-refrigerant propane refrigeration ...

Optibike is a bike manufacturer located in Colorado that has been in operation for 15 years. Optibike proudly describes itself as one of the most premium electric bike manufacturers the world has ever ...

With an inspiring name that makes you want to just saddle up and ride, Optibike’s newly released R22 Everest e-bike makes a bold claim when it comes to range, boasting that it’s “the only e-bike able ...

Colorado-based Optibike is one of the oldest electric bicycle companies in the United States, and so they know a thing or two about building high-performance e-bikes. But the new Optibike R22 Everest ...