It came with the bike, many moons ago, and appears to just be a rubber mudflap.
The SLR/Vigor is a lower bhp version of the Dommie, which is more road orientated, and nowhere near as raucous.
I got a quer shock when I went to throw my leg over the bike today for the first time in 18 months, as I'm not exactly long of fetlock
I remember riding the bike for years and thinking it wasn't that tall, until the rear shock eventually failed. Bought a replacement Hagon shock, and OMG! All of sudden, I needed a step ladder to get on the bike
Good for your hip joint though, especially with a top box. Thank goodness for Yoga