Fat Tire Flat-Protection Kit — Tannus Armour + Tubes + Tire + Sealant (20x4.0)

Fat-tire flats are the number one e-bike service complaint. This kit is the complete answer in one box: a heavy-duty tire, heavy-duty tubes, Tannus Armour foam inserts, and Kevlar-fiber sealant. Four layers of flat protection for 20x4.0 fat-tire e-bikes.

What is in the box

• Ultraverse 20x4.0 heavy-duty fat tire — directional all-terrain tread, built thicker than stock tires for puncture resistance and durability on pavement, gravel, and light off-road. Fits 20-inch fat-tire e-bikes and folding e-bikes.
• Ultraverse 20x4.0 heavy-duty inner tubes, 2-pack — thick butyl rubber, substantially more puncture-resistant than the thin stock tubes on most fat-tire e-bikes. Size 20 x 3.5/4.0 (89/102-406), Schrader valve (32mm).
• Tannus Armour tire inserts — foam inserts that sit between tire and tube to stop punctures before they reach the tube. If you do flat, the foam supports the tire so you can ride out instead of walking home.
• FlatOut Sportsman Formula tire sealant, 32 oz — Kevlar-fiber sealant that prevents flats and seals tread punctures up to 1/2 inch. One bottle treats the tires and keeps sealing for 10+ years; washes out with plain water.

Ordering and shipping

Order-per-sale: your purchase funds the order from the supplier. Do not want to do the install yourself? We do tire installs in Akron, Ohio — front tire $35, rear hub-motor tire $55.

Bundle pricing: $77.99 (tire) + $46.99 (tubes) + $88.99 (Tannus Armour) + $35.99 (sealant) = $249.96 bought separately. Kit price $234.99.