14WARNING:● Anti-tippers MUST be equipped, when the backrest angle is set as greaterthan or equal to eight degrees.4.7 Seat Depth Adjustment4.7.1 Remove both of the rear wheels and the seat upholstery. Lift the frameup and place it gently on a levelled table or place.4.7.2 Use the tool provided by KARMA to loosen the bolts on the bracketplate of quick release rear wheel. (See Figure 4.22)4.7.3 Move the fixing plate of backrest tube and the bracket plate of quickrelease rear wheel backward. (The length of adjustment depends on theaccessory equipped. It can be 1″ or 2″ long).4.7.4 Insert the optional extension tubes. (See Figure 4.23)4.7.5 Tighten the screws to fix the extension tubes. (See Figure 4.24)Figure 4.22 Figure 4.23 Figure 4.244.7.6 Position back the bracket plate of quick release rear wheel, andre-tighten the bolts.4.7.7 Re-assemble the rear wheels.4.7.8 Add the seat depth extension strip at the front of the seat, and placeback the seat upholstery. (See Figure 4.25)4.7.9 Cover the seat depth extension strip with the extended part of the seatupholstery. (See Figure 4.26)Figure 4.25 Figure 4.26