Spinergy Sport Lite Extreme "SLX R-10" Wheels (Pair) Accessories this is the solution

this is the solution

Snap rings or C-clips are used in a number of Forks and Caster Mount by a number of wheelchairs manufactures including:

The “anti-aging” sidewall construction can withstand typical overloading caused by low inflation pressure for much longer

From Kool Stop:

ABEC-5 to be precise

Spinergy Sport Lite Extreme "SLX R-10" Wheels (Pair) Accessories this is the solutionThe SLX R 10 X laced model combines the benefits of the SLX X laced design with the added durability of a 5 8" axle. The SLX R 10 X laced model combines the benefits of the SLX X laced design with the added durability of a 5 8" axle. The "R10" bearings have an inner diameter to accommodate a 5 8" axle. If you're bending the standard 1 2" axles, this is the solution. The X laced spoke design delivers nearly instant body movement feedback and immediate