Catalyst 4 & 4C

Catalyst 4 & 4C both take advantage of all of the "Catalyst Difference" design features to allow you to fit, adjust and ride with confidence.  A defining characteristic of each chair is its axle plate which we will highlight below. Innovative and Patented Frame DesignPatented frame concept uses intelligent geometry to create a significantly stronger, lighter and better performing chair.Offset Axle PlateThe Catalyst 4 series axle is mounted 1 ½" forward to traditional axle positions.  This small change can improve efficiency significantly. The simple axle plate design offers vertical adjustments of the axle in five positions.  It can also be reversed to gain greater rearward stability. Swing away footrestsEnjoy the simplicity and strength of Catalyst’s patented swing-away footrest hangers. The tapered engagement keeps the footrests snug and rattle free. Comes with a lifetime warranty.