MAXXIS WETSCREAM: Maxxis Wetscream is designed for the most heinous muddy downhill race conditions imaginable. The Wetscream is a competition use only tire and it is intended for muddy conditions only. 3C MAXXGRIP: Uses the stickiest, slowest rebounding rubber we offer in a mountain bike tire. This high traction compound is the same one used by our top World Cup Downhill and Enduro World Series athletes and is now available in a variety of casing configurations to cover all riders. DOWNHILL: Consists of two layers of 60 TPI casing combined with a large butyl insert, resulting in the most durable construction on offer. Choose the DH casing for gravity riding applications (downhill racing, bike park riding, freeride, etc.) where maximum durability and support are required. E25: Tires with an E25 rating are suitable for light duty e-bikes with assistance up to a maximum of 16.1 MPH. QUALITY GUARANTEE: 1-Year Manufacturer's Warranty