Description
* Designed with a tighter tolerance on the ID for better fit on the pinion shaft
* * Precision Machined Sprockets for accurate cam timing, Helps to eliminate the timing variance (up to 4 degrees) that is associated with the loose fitting factory sprockets.
* A VERY underrated component in quality engine builds
* High quality bearing steel for superior strength
* Replaces OEM # 25673-06
Tech Tips:-
* Due to variations in pinion shafts, S&S have gone a little smaller on the I.D.
Using a soft mallet to install is pretty common, after the first install and removal of the sprocket after checking sprocket alignment the 1091 will go on cleaner for final assembly as the sprocket is now somewhat matched to the crank.
