Fenwick’s Drivetrain Degreaser 500ml:

Fenwick’s:

For use when the chain lube is extremely difficult to remove. Fenwick’s Drivetrain Degreaser is a powerful blend of solvents designed to cut through the toughest of grime and leave a protective oil coating. It acts instantly, yet is stable enough to leave on to soak. Its versatility means it may be used with or without water for rinsing, leaving components looking like new.