Explains from basic electrical theory to the workings of complex electronic systems in and around motorcycles

Fits: 506990 13 1/2" 58-72 FL shocks

Two sizes available: 7/8- and 1-inch O

Note: Following is regarding 03-17 models

outside in

s s ece approved 4 grand national slip on mufflers for harley Fits:18-20 FLFB / FLSL / FXBB / FXBR / FXLR Explains from basic electrical theoryS&S EC Euro 4 5 Approved Grand National Slip On Mufflers for Harley Davidson The S&S ECE Approved Grand National Slip On Mufflers for Harley bring a race inspired touch with the Grand National endcap, ideal for enhancing any bike's style. These mufflers are equipped with an S&S engineered high flow catalytic converter and come with a dB reducer, ensuring optimal performance while remaining EU compliant under 11028 H EC Type Approval for non original