Kit contents: special cylinder - honed for 89mm pistons, special cylinder head & head dome, special copper base gasket. The new generation big bore cylinder is now available. It corresponds to a bore of 89-89.5-90mm by using 7894M pistons maintaining the stock crankshaft stroke. Its displacement rises to 941cc by using the standard stroke crankshaft. A test was performed with SEs 800SX-R equipped with a Factory Pipe dry pipe and reached the maximum speed up to 103km/hour. The particular set up enables the rider to feel the maximum power ever. The big bore piston was invented by Fennec and it was manufactured by Wiseco.
