15. REAR WHEEL/AXLE/SUSPENSION ATV 300/250 Measure the wheel runout. Service Limit: Vertical: 2 mm (0.08 in) Lateral: 2 mm (0.08 in) Out of specification Replace wheel. Remove the two rear axle nuts (outer and Collar Washer inner), washer and collar. Rear Axle Nuts Remove the rear brake disk. Rear Brake Disk 15-4