20x4.0 TIRE City Ebike Vee Rubber Fat tire Electric Bike Tire -Live4bi – LIVE 4 BIKES
Tannus Armour Tire Liner - Pair – Oregon E-Bikes
Tannus Armour - Single Liner – Coastal Cruiser Bikes
Tyre liners for 20x4.0, 26x4.0 inch wheel, Fat tire bikes.
Amazon.com : 2 Pack 20" E-Bike Fat Tires Heavy Duty 20 x 4.0 (102-406) Plus 20" Bike Tubes 20 x 3.5/4.0 AV32mm and 2 Nylon Rim Strips Compatible with 20x4.0 Electric Bike/Mountain