Dumonde Tech BCL

Unlike traditional oils that sit on the surface of your chain, Dumonde Original BCL uses a liquid plastic formula that polymerizes. This creates a durable, low-friction plating that bonds directly to the metal, meaning it won't wash off easily and keeps your drivetrain running cleaner for longer.

Yes, the formula is chemically inert and completely safe for use on plastic, rubber, and all seal materials found on modern bicycle drivetrains.

You should apply this product very sparingly. Because it creates a bonded plating rather than a wet coating, a little goes a long way; over-applying will only attract excess dirt and waste the product.

Absolutely. The Original BCL is specifically formulated to perform well in extreme cold conditions, making it an excellent choice for winter riding when other lubricants might thicken or fail.

For the best results, start with a clean, dry chain. Once the initial application has polymerized, you will find that your chain stays cleaner during use, requiring less frequent deep cleaning compared to standard wet lubes.