24"x1-3/8" (37-540) Solid Urethane Orion Wheelchair Tire with P163 Street Tread (Primo) Color:Black Silica compound features a special

Silica compound features a special silica filler in the rubber mixture that positively influences the rolling resistance

5" electronic throttle potentiometer harness

whenever desired

but they pack almost a quarter more power capacity

On a Series 20 pulley

24"x1-3/8" (37-540) Solid Urethane Orion Wheelchair Tire with P163 Street Tread (Primo) Color:Black Silica compound features a specialThese 24"x1 3 8" (37 540) solid urethane Orion wheelchair tires from Primo fits many manual wheelchairs models. The non marking black or gray urethane construction means flat free, worry free performance. The P163 surface gripping street tread means superior traction. If your wheelchair uses the 24"x1 3 8" (37 540) tire size, then this may be the one you want.