Photo 1 of AR-PRO (2-Pack) 4.10/4.50-18" Heavy duty Dirt Bike Inner Tube with TR4 Straight Valve for 110/100-18,110/90-18,110/80-18,120/90-18,120/80-18,100/100-18 Motorycle Rear Tire

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Photo 1 of AR-PRO (2-Pack) 4.10/4.50-18" Heavy duty Dirt Bike Inner Tube with TR4 Straight Valve for 110/100-18,110/90-18,110/80-18,120/90-18,120/80-18,100/100-18 Motorycle Rear TirePhoto 2 of AR-PRO (2-Pack) 4.10/4.50-18" Heavy duty Dirt Bike Inner Tube with TR4 Straight Valve for 110/100-18,110/90-18,110/80-18,120/90-18,120/80-18,100/100-18 Motorycle Rear Tire