Is there only one docking system for 22-28mm frame tube diameters?
Yes. The docking system A covers frame tube diameters from 22-28mm due to its design (shape of the clamping parts). In addition, there is a docking system B for 29-32mm tubing diameters, but the only difference is the length of the bolts.
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Can you attach the R20 to frame tubes with a diameter of 30mm?
Why is the attachment angle of the R20 important?
The attachment angle must always be in a range between 20° and 45° to make sure that the drive wheel can automatically generate enough grip through its forward rotation.
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Where do you attach the retaining straps for the backpack?
The training straps should be attached to the wheelchair frame so they cannot be misplaced or lost – never attach on removable parts of the chair.
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How do you store the battery correctly (e.g. over winter)?
Store the battery in a dry, cool place at around 50-59° F. Ideally, the battery should be kept at a state of charge of roughly 75%. If it is stored too long with little charge, the voltage inside drops so drastically that a deep discharge may occur, which permanently damages the battery.
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Which chairs is the R20 compatible with?
The R20 is compatible with all wheelchair models that have a box frame and tubing diameter between 22 and 28 mm.
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Can the charger be used outdoors?
No. The charger can only be used indoors and has a protection class of IP 21.
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What center of gravity (CoG) adjustments are recommended?
The center of gravity should be set more passively (2-4 cm max.) to reduce the backward tip risk, especially when using the R20 on slopes. In addition, the speed range should be reduced to stage 1 or stage 2 when starting on a slope.
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Which back tube/push handle diameters are compatible with the control unit clamp system?
The operating unit clamp system is compatible with 19-25mm diameter back tubes/push handles.
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Is the R20 crash tested?
No. The R20 is not crash tested and cannot remain on a wheelchair when it is used as a seat in a car.
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Can you attach the docking system B on the cross brace?
No. Docking systems must always be attached to non-moving frame parts and the docking pins must always be parallel to the ground.
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Can the dealer adapt the docking arm length?
Yes, the dealer can adapt the docking arm length economically, via spare parts (tube set) or ordering complete docking arms.
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How far can the telescopic tubes of the docking arms be extended?
The maximum extension is indicated by the red mark; this should not be exceeded.
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What is the weight of the docking system which remains permanently attached to the chair?
- Docking A: 220 g
- Docking B: 275 g
- Bracket operating device: 45 g
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What is the driving range of the R20?
The R20 can achieve a 9-mile range, as well as having the ability to climb 5cm curbs and 10° slopes. The range is dependent on many factors (e.g., driving attitude, load, surface, rolling resistance, charging level, and age of the battery).
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