Chain Drive 25 Long Board Double Bass Pedal. It doesn’t matter if its DOUBLE, 2xSINGLE or SINGLE, we always configure it properly. Completely loosen the spring (1) fixed in pedal with the adjusting screw (2). Using the 1.5mm Allen wrench, unscrew the screw (3) on the spring suspension (4). (4), which is screwed to the base (5) – Picture 3.1. To do this, you have to loosen the screw (4), shift the yoke on spring. Holder (5) and tighten the screw (4). Thanks to screwing down the screw (1) – Position 3.3.1 into one of the. Length (before unscrewing) – Picture 4.1.2. Position against each other – Picture 4.2.2 and Picture 4.2.3 in a way that the ends of two. De on pin-stocks (2) and (3)- it is vital for. If you need the more pictures or video, Pls contact to us. Normally it takes about 3-8days to arrive. If you can are from South American or other, Pls contact to us.