The Catalyst lineup has five models in the K0004 and K0005 classes, with all featuring 7000 series aluminum for durability and lighter vibration dampening. The Catalyst has a transit weight of 21-24 lbs. and is available in seat widths of 14″ to 22″. Seat depths range from 14″ to 20″, with camber of 0°, 2° or 4°. Weight capacity is 250 or 350 (heavy-duty) lbs.