Maxxis Detonator 20(451mm)X1 1/8 TireM shaped grooved tread pattern Colors available: Blue, Grey, Orange, Red, Yellow, Sky Blue, White, Lime, Pink Silkworm protection Training tire The Maxxis Detonator, with its dual compound tread pattern, provides a durable training tire with a race pedigree. Softer silica compound on the outer edges of the tire allows for great traction.