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Ki Mobility Catalyst 4C and Catalyst 4

Easy to transport, easy to push.

The Catalyst 4 & 4C are the lightest most durable and energy-efficient K0004 folders on the market today.

The Catalyst Difference

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.

Offset Axle Plate

The Catalyst 4 series axle is mounted 1 1/2" 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.

Front Frame Styles

Catalyst 4 & 4C offer the option of a swing away front end featuring our patented footrests or 70° or 80° fixed frames. The swing-away hangers come in 4 bends (60°, 70°, 80° & 90°) are light and easy to use and so strong we offer a lifetime warranty.

Maxx Performance Spoke

Maxx Performance is our new spoke wheel that offers performance and style without a high price tag. It features eighteen radial spokes and a high flange hub that result in increased rigidity for a more responsive, better performing wheel. The heightened level of responsiveness combined with a lightweight design give the rider the most from every push. Constructed with a 6061 series aluminum rim and straight steel spokes with a durable black satin finish for a look and feel that is anything but standard.

Mags Can Be High Performance Too

Ki Mobility proudly offers ultra-sleek and lightweight X-Coretm mags. These wheels have far greater stiffness and rigidity than conventional mags while keeping the weight to only 1 lb more than spokes. Now available in 20", 22" and 24".