USD 36.95-42.95 each (manufacturer shop)
Kobra (K885)
Tires - off-road. Wide semi-slick tyre with a flat centre and knobbly shoulders for moving between pavement and rough ground.
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Pr1mo · Tires - off-road · AC-117
The Pr1mo Raptor is a wide tire for wheelchairs that leave the pavement. The tread is deeply lugged for loose and uneven ground, and the black rubber is stated to be non-marking, so it can also be used on indoor floors. Pressure runs from 40 to a maximum of 65 psi. The 26 in version fits 559 mm rims only and will not go on 590 mm rims.
For users who want one wide tire for parks, gravel paths and indoor floors without swapping wheels. Frame and side guard clearance should be measured before fitting a 2.1 in tire.
The same units on every product, converted from the specifications below. Where a source gives two limits, the lower one is shown.
| Sizes (inch) | 24 x 2.1, 26 x 2.1 |
|---|---|
| Sizes (ETRTO) | 56-540, 56-559 |
| Pressure | 40-65 psi |
| Tread | All-terrain lugs |
| Colour | Black, non-marking |
| Sold as | Pair |
| Maker country | Not confirmed |
| Brand | Pr1mo |
| Category | Wheels, handrims and tires, Tires - off-road |
| Catalog ID | AC-117 |
Compared with the source page on 5 October 2026. Details can change, so we confirm them in your quote. Open the source page.
No. The retailer states it is for 559 mm rims only.
The tire is described as non-marking, so it is less likely to leave marks than standard black knobbies.
The source has shown it on manufacturer backorder. We will confirm lead time.
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USD 36.95-42.95 each (manufacturer shop)
Tires - off-road. Wide semi-slick tyre with a flat centre and knobbly shoulders for moving between pavement and rough ground.
USD 79.50 per pair (Sportaid)
Tires - off-road. A black knobby tire in 2.1 in width for all-terrain wheelchair wheels, in 54-540 and 54-559 sizes.
USD 42.50 per pair (Sportaid)
Tires - off-road. A knobby tire in the standard 37-540 width, with non-marking grey tread and black sidewalls.
USD 1,065 per pair (manufacturer list)
Rear wheels - fibre-spoked. Everyday rear wheelset with 12 radially laced PBO fibre spokes that damp vibration and leave room to reach through the wheel.
How-to & Maintenance · 8 min read
Soft tires and hair-wrapped casters make every push harder. This short routine keeps both in order and tells you when parts need replacing.