What Is Muc-Off Bio-Grease Used For on a Bike?

Muc-Off Bio-Grease is a biodegradable, water-resistant grease engineered for the threaded interfaces, bearing cups, headset races, bottom bracket shells, and seatpost collars that take constant compression and need reliable protection from corrosion and seizing. It delivers the same tenacious adhesion and moisture barrier you expect from a premium workshop grease while being fully biodegradable.

The 450g tub is sized for a home workshop and provides enough coverage to last through dozens of builds and service intervals. Apply it anywhere metal meets metal: cable end caps, cleat hardware, pedal threads, or stem bolts. It stays in place under compressive loads and does not wash out during wet-weather riding, making it a smart all-season choice for mechanical maintenance.