Tires and Wheels 8″ x 1″ Front Wheelchair Wheel (Each), 1-13/16″ Narrow Hub Width, 5/16″ Bearing, Fits Some Drive, Medline, ALCO & Other Manual Wheelchairs (Please Measure Hub Width) Review Posted on June 8, 2018November 7, 2018Author Marauderby 8″ x 1″ Front Caster Wheel, Soft Tread. 5/16″ Bearing,1-13/16″ Narrow Hub Width. Narrow Hub Fits Some Drive, Medline, ALCO & Other Manual Wheelchairs (Please Measure Hub Width)