Piston Kit for 4-StrokeKit includes piston, rings, wrist pin and circlipsPrecision machined on state of the art CNC equipmentMade with low expansion, low friction alloy12.4:1 compression ratio for '12-'13 YFZ450.
13.0:1 compression ratio for '04-'09 YFZ450.
12.6:1 compression ratio for '09-'23 YFZ450R.
High compression.