SUZUKI RMZ 250 2004-2011 Tuning kit Stage7

Big bore tuning kit as for stage 6. Instead of the Cometic EST top-end gasket set, the price includes a special 79 mm engine gasket set for years of construction between 2007 and 2009. Additionally with a reinforced long-stroke crankshaft, forged connecting rod with bronze bushing in the upper connecting rod eye. Connecting rod shot-peened to strengthen the surface. With silver bearing as standard. Crankshaft for 2007 to 2009 models.
Please tell us the year of manufacture.