Honda waves the wand over the 2007 CBR600RR

New Low-Lash Transmission

The CBR’s new transmission also takes full advantage of the engine’s performance characteristics for stronger acceleration while complementing the engine’s reduced torque reaction to greatly reduces the amount of gear lash felt during transitions between acceleration and deceleration. This new transmission also features new reverse-taper shift dogs that contribute more positive gear shifts in racing applications and help realise much smoother and more instantly responsive riding experience than that found on virtually any other machine in the new CBR’s class.

Chassis

Infused with race-bred technology, the CBR600RR’s innovative Fine Die-Cast aluminium frame represents a major advance in chassis design by making possible the most effective centralisation of the motorcycle’s main components for light handling and quick response to every rider input. Its advanced manufacturing technique helps realise an organically formed structure that offers an optimal balance of light weight and rigidity, which allows the machine to settle more securely into turns and change lines with assured ease, whatever the riding conditions or its rider’s level of expertise.

In order to further advance the new CBR’s development concept of achieving more easily enjoyable winding road and circuit riding performance, its frame was entirely redesigned around its remarkably compact new engine. Also, the CBR’s extraordinary reductions in front and rear mass play a major role in its improved mass centralisation, resulting in a significant improvement in the machine’s yaw moment and cornering response.

Newly Designed FDC (Fine Die-Cast) Frame

With the goal of reducing weight and centralising mass, the number of component parts and welds used to make the frame was significantly reduced. From the eleven sections used in the construction of the current RR’s frame, now only four larger castings are used to make the new CBR600RR’s frame. These are its large new steering head casting with its new apex-located ram air port, the two intermediate side engine hanger rails, and a single large U-shaped rear pivot mount section that wraps under the rear of the engine to surround the swingarm pivot and create an exceptionally rigid form. While all sections were hollow-formed with approximately the same 2.5mm wall thicknesses as the sections used in the construction of the current model, the new frame is fully 700g lighter than the unit it replaces, as well as being stronger, slimmer and more compact.

The Heart of the Matter — Reduced Engine Size

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