USD 299.99 per pair (manufacturer)
Phase I Suspension Fork
Suspension caster forks. Shock-absorbing caster fork pair that soaks up impacts and helps casters ride over small obstacles.
Casters, forks and front attachments
Last updated: 5 October 2026 · Total: 17 products
The small front wheels decide how a chair copes with cracks, cobbles and door sills. Suspension caster forks, such as the Frog Legs Phase I and the carbon Frog Legs II, put an elastomer between fork and frame to absorb shocks before they reach the spine and hands. Caster wheels differ in diameter, width and tread hardness, with wide soft-roll types like the Frog Legs EPIC aimed at uneven surfaces. Front free-wheel attachments clamp to the footrest and lift both casters, leaving one large wheel in front for grass, gravel and snow.
17 products
Filter and sort these productsOut of stock at source
USD 499.99 per set (manufacturer)
Frog Legs II Carbon Fiber Suspension System
Suspension caster forks. Composite-blade suspension fork set supplied with soft-roll casters and bearings.
USD 159.98 per pair (manufacturer)
EPIC Aluminum Wide Softroll Caster
Caster wheels. Machined aluminium-hub caster with an arched solid urethane tread that pivots easily and resists sinking into carpet.
from USD 199.99 per pair (manufacturer)
Whisper Shock Absorber Wheel
Caster wheels. Shock-absorbing caster wheel sold in pairs within the Frog Legs range.
USD 649 sale / 899 regular (manufacturer)
FreeWheel Wheelchair Attachment
Front free-wheel attachments. Clamp-on front wheel that lifts the casters off the ground, turning a rigid chair into a three-wheeler for rough terrain.
USD 159 (manufacturer)
FreeWheel Adaptor for Folding Chair
Front free-wheel attachments. Adaptor that lets the FreeWheel front wheel be fitted to folding-frame wheelchairs.
USD 21.99 per 4-pack (Wheelchair Bearings)
R6 ABEC-5 Front Caster Bearings (4-Pack)
Caster bearings. A four-pack of R6 caster bearings with rubber seals for front casters on a 3/8 in axle.
USD 19.99 per 4-pack (Wheelchair Bearings)
608 8 mm ABEC-5 Caster Bearings (4-Pack)
Caster bearings. A four-pack of 608 bearings with rubber seals for caster wheels on an 8 mm axle.
Out of stock at source
From USD 10.00 per kit (Frog Legs)
Caster Wheel Bearing Kits
Caster bearings. A kit of four caster bearings and two spacers, offered in standard, stainless, ceramic and TiLite versions.
Out of stock at source
From USD 159.98 per pair (Frog Legs)
EPIC Aluminum Narrow Court Caster
Caster wheels. A 1 in wide caster wheel with a 6061 T-6 aluminium hub and 608 bearings, sold in pairs.
Out of stock at source
From USD 199.98 per pair (Frog Legs; regular USD 249.99)
Aluminum Double Soft-Roll Caster
Caster wheels. A 1.4 in wide caster with an aluminium hub and urethane tread on 608 bearings, sold in pairs.
Out of stock at source
USD 49.99 per pair (Frog Legs)
AGOG Composite Caster
Caster wheels. A lower-cost Frog Legs caster with a five-spoke ABS hub, sold in pairs.
GBP 110.00 per caster (EPC Wheelchairs); no USD price shown
Slipstream Softroll Caster 4 x 1.4 in
Caster wheels. A 4 x 1.4 in soft-roll caster wheel from TiLite, sold singly in black or silver.
Out of stock at source
USD 539.99 per system (Frog Legs)
Phase II Trick Fork System
Suspension caster forks. A reinforced suspension fork pair with small caster wheels and a polymer lockout, backed by a lifetime warranty.
USD 150.00 per pair (Wheelchair Bearings)
Single Arm Fork With Axles and Spacer
Caster forks. A pair of single-arm caster forks with R8 bearings, three axle positions and mono axles for 8 mm casters.
Pre-order at source
GBP 96.93 ex tax per fork (EPC Wheelchairs); no USD price shown
61mm Anti Tip Fork Assembly
Caster forks. A sports anti-tip caster fork assembly for 61 mm caster wheels on RGK Elite and Grand Slam chairs.
How to choose
- Small hard casters turn quickly indoors, while larger or softer ones roll over obstacles more easily outdoors.
- Check that a bigger caster still clears your feet and footplate through a full swivel.
- Confirm the fork stem and axle bolt sizes of your frame before ordering a replacement fork or wheel.
- A free-wheel attachment needs a compatible rigid footrest, so tell us your footplate type.
Guides for choosing casters, forks and front attachments
All guidesHow-to & Maintenance · 8 min read
Tire and caster care in 15 minutes
Soft tires and hair-wrapped casters make every push harder. This short routine keeps both in order and tells you when parts need replacing.
Common questions
Why does my wheelchair caster flutter?
Flutter, a fast side-to-side shimmy, usually comes from worn bearings, a loose stem bolt, a caster housing that is not vertical or a wheel worn out of round. It tends to get worse with speed.
What does a suspension caster fork do?
It lets the front wheel move slightly against a cushion when it hits a bump. This reduces vibration and jolts passed to the rider and lowers the chance of the chair stopping dead on a small obstacle.