Seat Width (A) - Measure from outside of frame tube on one side to the outside of the frame tube on the other side.

Seat Depth (B) - Measure from the front of the backposts to the front edge of the seat sling. The seat sling starts at the beginning of the bend at the front of the frame.

In the Classic Position, the beginning of theseat sling is 4" behind the front bend to expose more frame for transfers.The Performance Position is 2" behind the bend and keeps your chair shorter and more maneuverable. Custom Seat Positions are available.

Front Frame Bend (E) - Bend of the front frame. The angle between the seat tube and the front (vertical) tube.

Footrest Taper This indicates the bend of the front frame creating the footrest. The footrest width (G) is listed on the chart for each frame width and frame taper. The Taper is measured from the outside of the seat frame to the outside of the front tube.

Front Seat Height (C) - Measure from the floor to the top of the seat tube at the front of the seat sling. The front seat heights are impacted by the size of your front caster. See chart to the right for the minimum seat height for your caster size. The front seat height is adjustable up or down by 1/2"

Seat to Footrest Length (F) - Measure from the front edge of the seat sling to the top rear of footrest. It is recommended that the measurement is a least 1.5" shorter than front seat height.

Rear Seat Height (D) - Measure from the floor to the top of the seat tube at the front of the backpost. The rear seat height is custom to your needs. It will be set inthe center of 5 discrete positions.* The seat height can be adjusted by a total of 1/2" up or down in 1/4" increments.

Standard Towers - rear seat height will be set in the center of a 1" adjustment (5discrete positions). (except at lowest end of rear seat height range where there isonly .5" and 3 discrete positions). The seat height can be adjusted up or down in.25" increments.Mx Towers - are useful when you need a very low rear seat height or when yourequire a larger rear seat height adjustment range. The Mx Tower allows amaximum 3" rear seat height adjustment range in .25" increments.

Rear Wheel Spacing (H) - Measure from outside of seat back to inside of rear tire. Wheel spacing is adjustable +/- .25" from setting.

Center of Gravity presets (K) - Measured - front of the back post to center of the rear axle. 0" indicates the axle will be directly under the backpost.

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