Threaded bottom bracket shells, headset races, pedal spindles, seatpost interfaces — these low-speed, high-load contact points need grease that stays put and keeps water out. Muc-Off Bio Grease is formulated specifically for bicycle applications where the rotational speeds are slow but the consequences of inadequate lubrication include seized bolts, corroded bearings, and creaking frames. The formulation combines extreme pressure additives with natural slip agents derived from renewable resources, creating a film that resists water wash-off even through sustained wet-weather riding.

The petroleum-free formula matters for environmental reasons, but it also means compatibility with carbon fiber components. You can apply Bio Grease to carbon seatposts, carbon steerer tubes, and carbon bottom bracket shells without worrying about chemical degradation of the resin matrix. The grease maintains its protective properties across an operating temperature range of -20°C to +120°C, which covers everything from winter commutes to hot summer climbing efforts where bearing temperatures spike under load.

Application is straightforward — work a thin layer onto threads before assembly, pack bearing races during hub or headset service, coat seatpost surfaces to prevent galvanic corrosion between dissimilar metals. The grease stays where you put it rather than migrating or breaking down under pressure, and its water resistance means bolts come apart years later without the seized-solid drama that unprotected threads invite. A 150g tube lasts through multiple overhauls since a little goes a long way on threaded interfaces.... Read More