All Suzuki has officially released on the 2006 GSX-R600 and GSX-R750 are a couple of photos and short specification sheets, but careful examination of the photos and conversations with sources within Suzuki indicate that both bikes will come with many revisions for 2006. First, what has not changed. The bore and stroke of the GSX-R600 will still be 67.0 x 42.5mm, but the GSX-R750 will get a new bore x stroke of 70.0 x 48.7mm in 2006, versus 72.0 x 46.0mm in 2004/2005. Like in 2004/2005, the two bikes will share a nearly-identical chassis. The engines of both bikes have been shortened front-to-rear by stacking the transmission shafts in a more triangulated layout with the crankshaft. This, combined with a new, tighter-fitting frame, will allow the wheelbase to remain 1400mm (55.1-inch) while gaining a longer swingarm. Front geometry has been revised with more rake (23.8° vs. 23.25°) and trail (97mm vs. 93mm), while the inverted Showa forks will get TiN-coating and the front brake rotors will grow from 300mm to 310mm in diameter, like on the GSX-R1000. The GSX-R600/750 platform has also gone through a mass centralization process. It is believed that the fuel tank now sits in a more vertical attitude, similar to the Honda CBRs, with the front of the traditional fuel tank location dedicated to the airbox, which is said to contain dual-injectors per cylinder and larger throttle bodies (40 vs 38 mm) for the 600. The GSX-R750 will stick with its 42mm throttle bodies. A new exhaust system is located almost completely under the engine with only an outlet, not a complete canister, sticking out under the right footpeg. The new exhaust arrangement will most likely save weight and increase aerodynamic efficiency. Expect the new GSX-Rs to get larger radiators, to come with slipper-clutches, to weigh less and to cost more, but don’t expect to see them in dealerships until February or March of 2006.