A chain is the most common form of drive on two wheels -- not only motorcycles, but bicycles, too. This is not the only way to transmit power to the wheel, though. Some bikes use a shaft in the ...

Model year 2014-2015 Aprilia Shiver 750 motorcycles manufactured February 10, 2014, to October 28, 2014 and 2015 Aprilia Caponord 1200 motorcycles manufactured November 14, 2013, to October 16 ...

Aprilia's most aggressive attempt yet at planting a stake in the U.S. motorcycle market is its $8999 Shiver, a naked 750 cc bike—it puts Ducati's iconic Monster squarely in its cross hairs.

Compare that to the most comfortable motorcycles you can buy and we see twice as many — the Honda Gold Wing GL1800, BKW K 1600 GTL, Kawasaki Concours 14 ABS, and BMW R 1250 RT, suggesting shaft ...