Made of high quality heavy duty aluminum, more and with span. Fits precisely in your ride: install it and forget it. Uses high temperature epoxy that is stronger, eliminating the possibility of magnet detachment. Prevents heat and friction from degrading the epoxy attaching the magnets. Though extremely unlikely, if a magnet ever come loose, it would remain in the sleeve preventing contact with the stator. Eliminates crankshaft vibrations for longer engine . Item Type:Stator Flywheel Dimensions: Exterior Diameter: 80 mm Interior Diameter: 69 mm Interior Diameter Center Housing: 12 mm Exterior Diameter Center Housing: 18 mm Thickness (exterior): 11 mm Thickness (interior): 6 mm Diameter of the Shaft largest to the narrowest: 26 mm 20 mm 18 mm 15 mm Fitment: For FZ1 1000 2006-2014 For FZ1-N 1000 2006-2014 For FZ1-S 2015 For FZ8 800 2011-2013 For FZ8-N 800 2011-2013 For FZS1 2015 For YZF R1 1000 2004-2008 REPLACE PART REPLACEMENT 5VY-81450-00-00 2SH-81450-00-00 Color:Silver Material:Metal Package Contents: 1 x Stator Flywheel Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.