Premium Suspension Tuning Kit Works on dirt bikes, street bikes, and adventure bikes. For MTB click here. Slacker is a patented system that allows anyone to easily setup their suspension with no assistance. This easy-to-use system quickly mounts to motorcycles and mountain bikes and provides simple, fast, and precise measurements. Slacker shows real-time readings right on the bars using our optional wireless remote, or our free Slacker Virtual Remote smartphone app. Directions For Use Just stick