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An all new CBR1000RR was introduced at the Paris International Motorcycle Show on 28 September, 2007 for the 2008 model year. The CBR1000RR is powered by an all new 999 cc (60.9 cu in) inline-four engine with a redline of 13,000 rpm. It features titanium valves and an enlarged bore with a corresponding reduced stroke. The engine has a completely new cyinder block, head configuration, and crankcase with lighter pistons. A new ECU delivers two separate revised maps sending the fuel and air mixture to be squeezed tight by the 12.3:1 compression ratio. Ram air is fed to an enlarged air box through two revised front scoops located......

The 1983 Suzuki Katana 1100 motorcycle marked a big step in the evolution of Suzuki motorcycles. Suzuki was the last of the Japanese manufacturers to add road-going four-strokes to its line; that event finally came with the introduction of the four-cylinder GS750 in 1976.

The 1983 Suzuki Katana was powered by a new generation of dual-overhead cam four-valve-per-cylinder engines.

Fitted with dual overhead cams (but only two valves per cylinder), it was slightly quicker than the venerable Honda 750, but that Honda was no longer the performance target to shoot for.
Inevitably, larger Suzukis followed, and not far behind. A GS1000 was......

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