We recently tore down the 1959 BSA Gold Star DBD34 (499cc single cylinder engine). The bike had the RRT2 gearbox and in this video you'll see it being run through the gears. We're producing a full length limited series on this bike on our second YouTube channel if you'd like to immerse yourself in the restoration. This video is an excerpt from part one. Mechanic in shot is Dave Mitchell. Location is Dave's Mitchell's Classics workshop, East Sussex, UK. Video by Alex Rollings. Instagram: @motofil