While motorcycle engines aren't usually strong enough for heavy cars, some models are lightweight, allowing them to make full use of these powerhouses.

We don't generally cover motorcycles, but we're going to make an exception for these bikes since they feature car engines. Not powerplants that are cut-down or derived from an automotive ...

It's an unapologetically rugged, old-school mini bike built for pure fun and utility. Coleman Powersports is a brand better known for its outdoor gear than motorcycles, but its gas-powered trail ...

Before Chevy small block V8-powered Boss Hoss Cycles and seven-cylinder aircraft radial-engorged JRL Cycles Lucky 7s, there was the 1966-1980 Münch Mammut. In English, that's "Mammoth," which is the ...