The 2005 model year GSX-R1000 had a redesigned engine and chassis. It had 2.0 kg lower weight than the previous model and the engine had an 11 cc larger piston displacement. It had a totally new frame reducing the total length of the bike by 41 mm but reducing its wheelbase only 0.51 mm. There were new brakes with radial mounted calipers and 310 mm discs at the front. The new titanium silencer (catalytic in Europe) was said to be designed to reduce turbulence to minimum. This model weighs in at a mere 365 lbs dry, putting it towards the top of the power-to-weight ratio charts. This weight reduction came at a cost of durability issues with the 2005–2006 models experiencing frame cracking.The 2005 model has a tested wet weight of 201 kg Power output is tested at 147.3 hp and peak torque is 102.2 N·m both at the rear wheel.The 2005 model carried over to 2006 without any significant improvements other than a few appearance changes. The 2006 model had a measured top speed of 286 km/h!PP Tuning performance parts for Suzuki GSX-R 1000 (2005–2006), rearsets, adjustable brake and clutch levers, clip-on handlebars, protectors etc. are produced from highly resistant materials. This ensures their longevity.