Same great stability, versatility and features as the PRS-20 Team Race Stand, yet weighs 35% less—only 13.5 lbs (6.2 kg). Built using a combination of steel for strength in joints and pivots, and aluminum to save weight. The PRS-21 is the perfect stand to choose when size and weight are important. Ideal for the traveling mechanic. The PRS-21 now features a taller bottom bracket saddle to clear the sensor used power meter (watt measuring) cranksets.