REX Black Diamond Chain Lube

LONGEST LASTING EVER

CHAIN LUBE IN INDEPENDENT LABORATORY TESTING.

Rex Black Diamond has been thoroughly tested in independent testing laboratories on two continents. In tests conducted by Zero Friction Cycling (Australia) and Wheel Energy (Finland), Black Diamond was tested to be the longest lasting chain lube ever, and also one of the lowest friction chain lubricants.

To date, no lubricant has remotely demonstrated the treatment longevity of Rex Black Diamond, which outperformed competing lubricants in tests, even when tested with an astonishingly long lubrication interval of 1,000 km.

ULTRASONICALLY TREATED IN REX R&D LAB

The secret of our new lube are the Black Diamond particles that are mixed into the lube in a time-consuming ultrasonication process at our factory’s Racing Service lab.

The Black Diamond particles significantly improve the properties of the lube: Lower friction, lower wear and increased rain resistance.

In continuous metal-to-metal contact that occurs in drivetrain while riding, the particles form an ultra-thin and hard layer that minimizes friction and wear, and is also waterproof.

Black Diamond reaches full lubrication performance without any drying time or run-in period. In tests conducted by Zero Friction Cycling, Black Diamond demonstrated excellent penetration capabilities when applied as per our instructions.

THE BEST LUBE CHOICE FOR INDOOR CYCLING

ENTIRE ZWIFT SEASON WITH A SINGLE LUBRICATION?
NO PROBLEM!

Black Diamond makes your chain silky smooth and silent. In indoor cycling, it is possible to ride over 5000 kilometers with a single lubrication, before the chain wear starts increasing. No other lubricant on the market matches the lubrication performance of Black Diamond.

THE BEST LUBE CHOICE FOR INDOOR CYCLING

ENTIRE ZWIFT SEASON WITH A SINGLE LUBRICATION?
NO PROBLEM!

Black Diamond makes your chain silky smooth and silent. In indoor cycling, it is possible to ride over 5000 kilometers with a single lubrication, before the chain wear starts increasing. No other lubricant on the market matches the lubrication performance of Black Diamond.

THE BEST LUBE CHOICE FOR E-BIKES

LESS TIME AND MONEY SPENT IN SERVICE

In electric bikes, chains and chainrings are subjected to higher forces than usual. Small chainrings and sprocket sizes, low cadence, and high power are a combination that wears out the drivetrain quickly. By choosing the right chain lubricant, the lifespan of your chains can be increased up to six times when compared to average lubes on the market.

Friction and wear go hand in hand. By using the Rex Black Diamond, you will significantly reduce the wear and tear on the transmission of your electric bike. Components need to be replaced less often, and you can focus on riding your bike instead of replacing drivetrain components. The total savings during the driving season can be several hundred euros. The total running costs of the bike are reduced and the chain lube pays for itself many times over.