Description: Built for adventure, the CST All-Terrain 20x4 tire delivers exceptional grip and durability on all surfaces—mud, sand, or snow. With a 20-inch size and 4.0-inch width, it ensures stability and a smooth ride across any terrain. Perfect for electric or traditional bikes. Features: Heavy-duty rubber for longer tire life. Designed for fat bikes. Knobby, tough tread pattern provides more traction in turns and climbs. Package includes 1 inner and 1 outer tire. * We do not accept returns or refunds for non-quality-related issues after purchase. * If you're uncertain whether this model is suitable for your electric bike, please do not hesitate to contact us for professional assistance. We are here to support you!