70/10019 80/10019 2.75/3.0019 Dirt Bike Inner Tube 2.1mm Fits Surron
70/100-19 80/100-19 2.75/3.00-19 3.00-19 Electric Dirt Bike Inner Tube Heavy Duty – 2.1 mm Thickness for Surron Light Bee X mx3/r mx4 Talaria UltraBee EridePro X160/X260 CRF 100F 125FB 150F 450R. Heavy Duty – 2.1 mm Thickness for Surron Light Bee X Talaria UltraBee EridePro X160/X260 CRF 100F 125FB 150F 450R.