Muc-Off Bio Grease 150g Tube. Designed specifically for bicycle use Muc-Off Bio Grease possesses a unique formula that prevents corrosion and water ingress so your bikes components will last long into the future. Use Muc-Off Bio Grease to increase your performance and ensure every ride will be smoother than your last.Biodegradable ultra slippery formulaResistant to water wash offReduce friction and improve performance of moving parts