Wheelchair Wheels: What You Need To Know For ...

Wheelchair Wheels: What You Need To Know For ...

When choosing wheelchair wheels, consider factors such as wheel diameter, spoke lacing, hub type and size, tire tread and material, solids, inner tube inserts, and axle diameter. Each of these components plays a crucial role in the performance and usability of your wheelchair.

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Key Factors to Consider

Wheel Diameter

Most wheelchairs use a 24" wheel. Pediatric wheelchairs to sports wheelchairs range from 20" to 27" wheels. Larger wheels cover more distance per push, while smaller wheels are easier to start pushing. For everyday use, a 25" wheel is preferred by most full-time wheelchair users, offering a balance between long rolls and a fast start. Sports wheelchairs benefit from 25" or 26" wheels for longer rolls and faster speeds.

Spoke Lacing

There are two types of spoke lacing: radial and cross-laced. Radial lacing involves spokes moving out from the inner hub to the rim without crossing, making the wheel strong up and down. Cross-laced spokes intersect a few times before reaching the rim, offering stronger side-to-side stability, essential for sports chairs with high camber angles.

Hub Type and Size

Sports wheels often have larger flanges on the hub sides to reduce flex. Everyday wheels have smaller hubs. Hub width affects stability and power transfer. Standard bearings are spaced 2.3" apart. Narrow hubs (1.9") make the wheelchair narrower but can be wobbly when force is applied, which can affect sports performance.

Tire Tread and Material

Tire tread design varies based on use. Everyday wheelchair tires have light tread for flat surfaces, sports tires have minimal tread for dry courts, and off-road tires have knobby patterns for better dirt traction. Tire material impacts performance; softer materials offer better grip but wear out faster, while harder materials last longer but may slip on wet surfaces or leave marks indoors.

Tire Inflation: Solids, Inner Tube, Inserts

Air-filled tires provide the least surface contact with the ground, requiring less energy to push. However, air-filled tires can leak or pop, necessitating regular maintenance. Solid tires, made entirely of rubber, do not go flat and their tread lasts long, but they are heavier and softer, requiring more energy to push. Solid inserts filled with rubber offer a balance but are slightly softer than air and can be challenging to replace.

Axle Size

Wheelchair axles vary in length and diameter, ranging from just under 4" to over 6" in length and 12mm to 1" in thickness. Thicker axles (5/8") provide stability for contact sports, while most users find 1/2" axles sufficient. Flexible axles reduce energy efficiency, so choosing the correct size is crucial.

Choosing Wheelchair Wheels for Different Uses

Everyday Use

For everyday use, opt for a 25" wheel due to its balance between ease of starting and rolling efficiency. Air-filled inner tubes are common, but solid inserts can be considered to avoid punctures. Ensure the tire is non-marring to avoid marking floors.

Sports Use

Sports wheelchairs benefit from 25" or 26" wheels for quicker travel. Radial lacing can offer up-and-down strength, essential for handling impacts during sports. Air-filled tires provide the necessary performance despite requiring more maintenance.

Off-Road Use

For off-road use, choose tires with knobby treads designed for low RPM pushing. Be cautious of high-speed mountain bike tires as they can burn a lot of energy and leave marks on indoor floors.

Things to Consider

• Consider the type of wheelchair: Different wheelchairs require different wheels. Manual wheelchairs typically use smaller wheels, while power wheelchairs use larger ones.
• Determine mobility needs: Outdoor or rough terrain use requires larger, durable wheels. For indoor use, smaller wheels are more suitable.
• Look at the tread: Deeper treads offer more traction, while shallower treads improve maneuverability.
• Consider wheel weight: Lighter wheels are easier to transport.
• Think about your budget: Wheel price varies by type and quality. Choose wheels that fit your budget and needs.

Buying Guide: Wheelchair / Scooter Tires

Ordering new tires for your wheelchair or scooter is straightforward. Find the size, tread pattern, and type information first. Match the tire size on the sidewall to ensure compatibility. Note if the existing tire is air-filled, foam-filled, or solid. Check if the wheelchair rim has a hole for an inner tube valve stem. The tread pattern is indicated on the sidewall, and wheel type is important for upgrades. Cambered wheels may require specific tires. Lastly, know the make and model of your chair or scooter to select the correct tire variation.