For those that plan to install their Motolights on their 2008 SERK, here are some things to be aware of.
My chrome set of lights came with the wrong brake caliper mounting bolts. I called Motolights and they sent me another wrong pair of bolts. The Brembo brakes on my 2008 SERK required M10 X 50mm metric bolts. It took me a couple of weeks to find stainless steel metric bolts that fit the brackets and my bike. My suggestion is to pay attention to this and do not go cheap or quick by using the wrong bolts. You do not want one of these bolts snapping off when you need the ABS to stop you in a hurry.
The mounting brackets did not fit properly on my Brembo calipers. I emailed Motolights about the bracket problem (and provided them the bolt information). After waiting over a month with no response from Motolights, I proceeded to custom-fit my mounting brackets by grinding away small amounts of the brackets until they fit properly. I used the right-side factory fork mount switch for controlling my Motolights.
A friend of mine had a chrome set installed on her '07 Road Glide by her dealer. She paid $800.00. I paid $480.00 for my chrome lights, no braided cable and 2 50W lamps. The correct mounting bolts cost about $4.50. And I estimate the PITA factor as 6 on the 10-point scale. But those lights make one huge difference in seeing and being seen.