• Specific lubricant for bicycle chains in extreme cold conditions down to -50 °C or snowy trails. • Penetrates deep into the links preventing them from freezing during winter rides or competitions. • Bottle with included brush to ensure complete lubrication without waste. • Fluorescent formula visible under UV light to verify correct chain lubrication. • Reduces friction and wear ensuring smooth and quiet gear shifts. • Suitable for direct use on the chain, derailleur, and sprocket set. • Compatible with chain groups for MTB, cyclocross, road bikes, and fatbikes.