Simpla Hammer Pro rear mudguard This rear mudguard model Hammer Pro from Simpla is designed for mountain bikes. The mudguard can be attached to the seat post on bicycles with a wheel size between 24 and 29 inches. This rear mudguard is made of sturdy plastic and can therefore withstand a beating! Specifications: Color: black, yellow Material: plastic Type of bicycle: ATB / MTB Type of mudguard: rear mudguard Wheel size: 24 - 29 inches Length mudguard: 61 cm Width mudguard: 9 cm Weight: 211 grams Attachment: seat post