Protect your XR bearings from water and dust that can lead to premature bearing failure or motor damage.
NO disassembly required!!Step 1: CLEAN the bearings with the included cotton swabs. DO NOT use alcohol or other liquids.
Step 2: Apply the grease all the way around next to the axle AND next to the hub.
Step 3: Slide the LEFT or RIGHT side seal around the axle and press it all the way against the hub all the way around until it is flush like in the picture.
Step 4: CHECK the grease every few months by lifting the edge of the seal and pulling it off the axle. Add more grease or re-clean as needed.