The park tool prs 21 super lite team race stand offers the same great stability versatility and features as the park tool prs 20 yet weighs 35 lessmdashonly 135 lbs 62 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 by power meter w