Sport Rider Photos
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Central to the CBR1000RR's redesign is a five-pounds lighter, more compact engine with a 1mm-larger bore and correspondingly shorter stroke. To avoid spreading the individual cylinders farther apart, a separate cylinder block with Nikasil-coated cylinders is used in lieu of the old bike's cast-in cylinders with separate liners. The intake valves are larger (30.5mm vs 29mm) and now titanium, and shorter exhaust valves allow the camshaft to be lower in the cylinder hed for a 15mm-lower overall profile. The camshafts themselves use a new casting process that allows their walls to be thinner, saving more than one pound overall.
2008 Honda CBR1000RR Redesigned