Degreaser 500ml wd40. degreasing the chain of your bike may be long and difficult. for this, the formula of our degreaser wd40 bike is ideal to remove grease, crusse, dust, oil and other residues from the chain, trays, suspensions and other quickly and easily. for easy and quick cleaning of your bike, apply the product and leave a few seconds for the product to penetre in the areas and bearings of the area to be treated, then pass a cloth to remove the excess product. repeat the operation until all the dirt disappears. wd40.