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| | Supreme performance in dry and wet
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.
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.
Black diamond
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 Servicelab. The Black Diamond particles significantly improve the properties of the lube: Lower friction, lower wear and increased rain resistance.
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.
N-kinetic nanowax
Featuring the latest race ski wax technology
We have upgraded the wax used in Black Diamond lube to the same high fluor Rex N-kinetic™ nanowax which is used in our best cross-country ski waxes. The slightly lower viscosity results into lower friction and better lube penetration into the chain. Rex is well known for its world cup level ski waxes and is an expert in paraffin wax-based applications with six decades’ worth of experience.
Rain resistant
Next level combination of dry and wet weather performance
Previously, seeking for the lowest possible friction in a chain lube has meant sacrificing all-weather performance. So-called “wet” lubes have traditionally been very energy-stealing. Rex Black Diamond combines test-winning friction levels with strong weather resistance in a previously unseen way. Black Diamond has been tested in demanding race conditions by our elite athlete team. The true king of chain lubes!
Wax based
Solvent-free, non-vaporizing, undiluted
Adding solvent or water to a chain lube is generally thought to be a great way to reduce manufacturing costs and give the manufacturer a better margin. At Rex, we think otherwise. Every drop you apply on the chain is 100% lubricant and not something that will evaporate into the air. Unlike with most chain lubes, there is no need to wait until the solvent evaporates before you can ride your bike. Skladom | 235,92 zł 195,99 zł
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| | Amazing longevity
Over 1000 km’s with a single application
Zero Friction Cycling is the world’s leading chain lubrication test laboratory, and it is trusted by all major chain lube manufacturers. Their over 300,000 controlled test kilometers form a comprehensive database of the best lubricants on the market. 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.
Power and torque
With e-bikes, lubricant choice matters!
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.
Under load, the Black Diamond E’s nanoparticles form an extremely durable and low-friction surface layer on metal-to-metal contact surfaces, significantly improving the lubricating properties. In addition to low friction and low wear, Rex chain lubes’ ability to recover from temporary interruptions in lubrication caused by sand, water and dust is researched to be the best in its category. Even when subjected to contamination, Rex does not turn into an abrasive paste that quickly wears out chains. This is due to Rex’s extensive knowledge of dirt-repellent waxes and their additives.
Enhanced composition
Synergetic advancements with nanotungsten
We took the recipe for black diamond and made it even better for electric bikes in two ways: Nanotungsten (WS2) improves the pressure resistance of the lubricant and further reduces the level of friction. When used in combination with our proprietary Black Diamond nanoparticle technology, a synergistic effect is achieved. The use of both additives at their optimal concentration gives a result that is better than the sum of its parts. For best performance, both nano additives are blended into the lubricant in an ultrasonic process at our factory in Hartola, Finland. As an additional spice, we added Rex N-Kinetic™ hydrophobic polymers to the composition. They give Black Diamond E better anticorrosion properties than our previous chain lubes, and improve performance in very cold conditions.
Breaking records
The new benchmark in chain lubrication
Black Diamond set a new record in lubrication longevity in tests done by Zero Friction Cycling. So even if you are a lazy luber, the chain stays protected from premature wear. The difference is considerable even when compared to other top oils on the market.
Saves money
Less time and money spent on service
Friction and wear go hand in hand. By using the Rex Black Diamond E, 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. Protecting your chain frompremature wear with the Black Diamond E is easy: Lubricate the chain when it sounds dry, and keep the chain surface chain clean by wiping it with a cloth from time to time. Only the lubricant that is inside the chain matters for lubrication performance and only a small drop of Black Diamond is needed for each chain link.
Wax-based
Solvent-free, non-vaporizing, undiluted
Adding solvent or water to a chain lube is generally thought to be a great way to reduce manufacturing costs and give the manufacturer a better margin. At Rex, we think otherwise. Every drop you apply on the chain is 100% lubricant and not something that will evaporate into the air. Unlike with most chain lubes, there is no need to wait until the solvent evaporates before you can ride your bike. Skladom | 235,92 zł 218,84 zł
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| | Active solvent technology
Use straight or mix with water
The special surfactants used in rex chain cleaner increase the wetting properties of the low aromatic hydrocarbon solvent mix, and also create a water-micsible solution that can be used raw or diluted for water for use in chain cleaning machine. Rex chain cleaner dissolves oil, wax and other stubborn dirt and makes it water rins able.
Non-alkaline
Safe for aluminum and carbon
When researching raw materials for our bicycle detergents, we found out that many popular detergents that cyclists use to wash their bikes are actually harmful to them. Alkaline detergents cause corrosion in aluminum parts over time and take away the shine from anodized aluminum parts. Rex chain cleaner has been verified to be completely safe for anodized aluminum parts in long-term soak tests. It also does not leave a film on the brake discs and weakens their performance.
Mix ratio
1 part chain cleaner / 2 parts water
Active solvent technology: mix with water for more economical use. Rinse away with water. Absorb dirty solvent into rags or tissues and let it evaporate. Do not pour down the drain. Rex chain cleaner is mostly biodegradable. Skladom | 60,82 zł 56,88 zł
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