The RV10 by design does not come with a parking brake and this was one of the components I decided to add. I chose the Matco PVPV-D brake unit. Vans sells the brake and a well designed installation kit. I clecoed it to the firewall so I could run my brake lines through the tunnel. The tunnel is going to get pretty crowded in the near future, and this will be a good time to get these lines installed. The bending went pretty well... I did prep for the work by watching several you tube clips on tube forming. I also had purchased some pretty good tools. That and a little practice....paid off. I plan to remove them before I rivet the rib subassemblies to the firewall...and attach them later as the tunnel starts to fill up. There is enough clearance for insulation behind the lines.