Back in November, BikeRadar reported on a drivetrain efficiency study by Friction Facts, and our relationship with the component tester continues to bear fruit, with this installment investigating the ...

There are now quite a few electric skateboards on the market, although they pretty much all have four wheels, are direct- or belt-drive, and top out at around 20 mph. The Speedboard is a little ...

What are some outstanding design/ construction features in a chain drive, and how do they contribute to higher productivity? Chains are versatile components used in power transmission, conveying, and ...

Productivity is a shared goal in industrial applications, involving designers, component makers, and end users. Everyone plays a role. In this report, the editors of Motion System Design polled belt ...

Electric bike technology has advanced leaps and bounds in recent years, so much so that the very foundations of the bicycle as we know it are being overhauled. Sure, even the most sophisticated ...

Although Schaeffler admits that Free Drive is about 5% less efficient than a chain drive at converting pedaling power into forward motion, the system also allows for much greater freedom when it comes ...

Back during WWII, Chrysler bodged five inline-6 engines together to create the powerful A57 multibank tank engine. [Maisteer] has some high-revving inline-4 motorcycle engines he’s trying to put ...

The Honda Grom is the little motorbike that can... get you anywhere in a city and quickly. It's a real-deal motorcycle with a clutch and gears, but fun-sized and affordable. In 2014, Honda debuted an ...