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Rex Black Diamond E-Bike chain lube oil, 30 ml
RRP 47.99 €
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Delivery method on Thursday 09.07.2026
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Delivery method on Thursday 09.07.2026
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Product description
E-bike drive components are exposed to much higher forces compared to conventional bikes. Smaller sprockets, lower cadence combined with high load, is a combination that significantly affects the faster wear of the chain and the entire drivetrain. By choosing the best lubricant on the market, Rex Black Diamond E, you will increase the lifespan of your chain by up to 6 times compared to an average lubricant.
Optimized formula for e-bike
The formula of the best lubricant on the market, Black Diamond, has been improved in two ways during optimization for e-bikes:
1) By adding nanotungsten (WS2) in combination with the patented Black Diamond nanoparticle technology, a synergistic effect was achieved in further reducing the friction level and the lubricant's resistance to pressure. The optimal ratio of both additives results in better properties than the sum of their parts.
2) By adding Rex N-Kinetic™ water-repellent polymers, the anti-corrosion effect and the performance of this lubricant in very cold conditions have been improved.
The results of this effort were confirmed by an independent test by Zero Friction Cycling, the world leader among laboratories testing chain lubricants, in which the Black Diamond E lubricant set a new record in the durability and endurance test, which measures the number of kilometers traveled from application until the chain shows 0.1% wear. The value of this record is 1867km per lubricant application.
You will definitely save!
By using Black Diamond E lubricant, you will significantly reduce the wear of your e-bike's drivetrain, and you will replace individual components less often than when using other lubricants. Depending on the mileage and component level, the savings on maintenance can range from tens to hundreds of Euros. The investment in the best lubricant on the market can therefore pay off multiple times.
Lubricant application
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Rex Black Diamond E-Bike Chain Lube
Optimized version for e-bikes - the pinnacle of all bicycle chain lubrication preparations.E-bike drive components are exposed to much higher forces compared to conventional bikes. Smaller sprockets, lower cadence combined with high load, is a combination that significantly affects the faster wear of the chain and the entire drivetrain. By choosing the best lubricant on the market, Rex Black Diamond E, you will increase the lifespan of your chain by up to 6 times compared to an average lubricant.
Optimized formula for e-bike
The formula of the best lubricant on the market, Black Diamond, has been improved in two ways during optimization for e-bikes:
1) By adding nanotungsten (WS2) in combination with the patented Black Diamond nanoparticle technology, a synergistic effect was achieved in further reducing the friction level and the lubricant's resistance to pressure. The optimal ratio of both additives results in better properties than the sum of their parts.
2) By adding Rex N-Kinetic™ water-repellent polymers, the anti-corrosion effect and the performance of this lubricant in very cold conditions have been improved.
The results of this effort were confirmed by an independent test by Zero Friction Cycling, the world leader among laboratories testing chain lubricants, in which the Black Diamond E lubricant set a new record in the durability and endurance test, which measures the number of kilometers traveled from application until the chain shows 0.1% wear. The value of this record is 1867km per lubricant application.
You will definitely save!
By using Black Diamond E lubricant, you will significantly reduce the wear of your e-bike's drivetrain, and you will replace individual components less often than when using other lubricants. Depending on the mileage and component level, the savings on maintenance can range from tens to hundreds of Euros. The investment in the best lubricant on the market can therefore pay off multiple times.
Lubricant application
- for best results, it is necessary to perfectly degrease and clean the chain before the first application (e.g., with Rex Chain Cleaner)
- the lubricant is applied by one drop per chain link
- it is ideal to warm the chain during or after application, the lubricant will penetrate better into the chain's core
Product features
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Black Diamond E lubricant creates an extremely durable layer in metal-to-metal friction areas
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In addition to the very low level of friction, a demonstrable advantage of this lubricant is the fact that if it is contaminated with a combination of dust, sand, water and other impurities, it will not change its consistency into an abrasive grinding paste damaging individual drive components
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Product details
| Volume | 30 ml |
| product ID | 205698 |
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Finnish brand Rex has been making ski care since 1952, and in 2015 they also focused on bike care. Their Black Diamond lube won an independent laboratory test as "the most effective". Their offer also includes cleaners and vaseline.
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Variant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Még tesztelés alatt van. Eddig kb 450 Km-t tekertem az alső használat után a láncba, de érzésre még pár száz bele tekerhető. Minimális por marad a láncon, enyhén feketedik csak a lánc.
Translate by GoogleShow the originalVariant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Definitely the best lubricant on the market for E-bikes, it can withstand the extreme load of weather and terrain. Even after 300 km, the chain is silent. I recommend it 100%, the price corresponds to the quality of the product.
Automatically translatedVariant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
zatiaľ nevidím nejaký rozdiel medzi inými mazivami, mazal som zatiaľ 2x zhruba po 500km, jazdené na 95% v suchých a prašných podmienkach
Translate by GoogleShow the originalVariant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Používam v zime, v lete a po jazde stačí utrieť reťaz a raz za tri jazdy použiť.
Translate by GoogleShow the originalVariant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Maximálna spokojnosť! Interval uvádzaný výrobcom je 100% reálny.
Translate by GoogleShow the originalVariant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Už mazem len s nim všetky e bájky v rodine
Translate by GoogleShow the originalVariant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Variant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Variant Rex Black Diamond E-Bike mazací olej na reťaz, 225 ml
Variant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Variant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml
Variant Rex Black Diamond E-Bike mazací olej na reťaz, 30 ml