20" x 4.0" (Big Daddy)
Chao Yang 20" x 4.0" Tire (Big Daddy)
This is where things get chunky. The Chao Yang 20" x 4.0" “Big Daddy” tire is built for max grip, max cushion, and a ride that feels planted no matter what you roll over. Sand, snow, loose gravel, rough pavement… this thing just eats it up.
The oversized 4.0" profile acts like built-in suspension, soaking up bumps and giving insane stability. Whether it’s a fat bike, e-bike, or a custom build that needs presence, this tire brings both function and attitude in one package.
Wide, tough, and unapologetically bold.
Key Features:
Size: 20" x 4.0"
Ultra-wide profile for maximum traction and comfort
Excellent performance on sand, snow, gravel, and rough terrain
High-volume design absorbs bumps and vibrations
Durable rubber compound for heavy-duty use
Ideal for fat bikes, e-bikes, and custom builds
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