Join Date: Jul 2015
Location: Carson City NV USA
The bike shown is a DCT equipped model that reverts to neutral when the engine isn't running. It prevents the bike starting in gear which is good, but you can't leave the bike in gear to keep it from rolling when you park. Thus the need for a parking brake.
The mechanism seems to work like the parking brake on my Suzuki quad which has hand brakes on both sides of the handlebar. Pull the left brake lever in and use the small lever to engage a latch that locks the brake lever in place so the rear wheel can't move until the latch is moved back -- which occurs when you pull the brake lever in again.
The smaller than normal (parking) brake lever shown on the AT could actuate a mechanical rear brake caliper (as on the NC700XD) or possibly a hydraulic master cylinder working on the rear hydraulic brake caliper.