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