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Catalyst 4 and 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.

The 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.

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.

The Catalyst 4 & 4C offers Ki Mobility’s full line of specially designed Ki spoke wheels with precision machined hubs and hard anodized handrims.  Utilizing straight pull spokes this wheel promotes a stiffer and stronger wheel while the hard anodize handrim is resistant to scratching so they keep that “NEW” look longer.  We also offer the full array of industry standard wheels and casters such as Spinergy, Natural Fit, Frog Legs and Topolino.

Ki Mobility proudly offers the 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″.

AADL Certified.


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Product Description

Standard Weight: 24lbs (10.89kg)
Seat Width: 14 – 22″ (36 – 56cm)
Seat Depth: 14 – 20″ (36 – 51cm)
Front Seat Height: 13.5 – 21″ (34 – 53cm)
Catalyst 4 Rear Seat Height: 12 – 19″ (31 – 48cm)
Catalyst 4C Rear Seat Height: 12 – 20″ (31 – 51cm)
Weight Capacity: 250lbs / 350lbs (113.40kg / 158.76kg) Heavy Duty
Top Frame Tubing Size: 1″ (2.54cm)
Bottom Frame Tubing Size: 1.125″ (2.86cm)

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