The largest parallel-twin engine ever fitted to a production motorcycle is not some futuristic prototype, but a bruising ...

Photo: Alfa Romeo Automobiles S.p.A. Back in the fifties when most Italian manufacturers were busy developing large engines, Alfa Romeo went the opposite route and created the Twin Spark inline-four.

This Triumph cruiser with a huge parallel twin was a bold rival to the heritage-rich American V-Twins from Harley-Davidson ...

Given their need for compact packaging, motorcycle engines tend to have few cylinders — most commonly one or two. While one-cylinder or thumper engines are small, easy to maintain, and relatively fuel ...

The 156 has a powerful stance emphasised by its muscular shoulders and bold front and rear treatments. The 156's heartbeat came from a 2.0-litre double overhead camshaft four-cylinder engine with twin ...

BorgWarner Turbo Systems says it has developed a new ‘K04 Twin-Scroll turbocharger’ which will be used for the first time in a spark-ignition engine with direct fuel injection and turbocharging. The ...

BMW Motorrad CEO confirms the 310 series will be discontinued and replaced by an all-new 450 twin-cylinder platform, starting ...