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Rex Black Diamond Chain Lube, 30 ml

RRP 59.99 €
54.99 €
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In 3 stores > 2 pcs In stock > 2 pcs
Rating 4.81/5 (67)
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sonkastojas • 30 January 2023 at 22:00
A truly jawdropping performance. I heard about RBD from a friend and after that I read the review at Zero Friction Cycling. The test results were so out of this world, I had to try this lube out. Astonishing performance. If you follow ZFC"s guide and properly degrease your chain, and put the Rex lube on it, you will get a totally silent, clean and shiny drivetrain, even on a 12.5% ovality front ring combo. Even after close to 40 hours on the turbo in ERG mode (shiting after 10 hours), no real loudness, chain runs great, no performance drop. With a KickR V5, and a P2M NGeco, I realised that I lost so much watts with other overhyped products. Instant 4-5 watts over any MucOff product, and 6-7 over the factory grease. This is the net saving measuring the PM and the trainer. The measured values differ from -2 to 13 watts, but you have to subtract the accuracy of the meters and filter out the outliers. What truly amazing is, that the lube not just holds its performance but after 8-12 hours it gets even better. I am totally sold to Rex, will even try that race spray, because I am pretty confident, that those last 2 watts will be in those bottle too. Follow Zero Friction Cycling"s guidance and if you try this out, I am 100% sure you won"t be sorry for it. Usually not writing reviews, but this product does everything which is in its advertisement, and maybe even more. Edit1: First PC1130 chain wore out completely (0.5 drop in practivally everywhere) only after 3000+ km, which is really good for this chain. Used it on the turbo, inside in ERG mode, which sure helped a lot, but recently I could only get out 2000 kms from these, so happy with the result.
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REX Black Diamond Chain Lube

The king of all bike chain lubricants. Diluter-free, high-fluorine Rex Black Diamond chain lube is characterized by a unique formula and a time-consuming production process, where Black Diamond graphene nanoparticles are mixed into the lubricant using an ultrasonic process. This new combination reduces friction, wear and increases resistance to rain. In the development of this unique product, Rex also collaborated with one of the few independent laboratories, Wheel Energy, which tests the effectiveness of individual lubricants. From a 300 km test on a dynamo (with a load of 175 W) it emerged that the Rex Black Diamond lubricant has the least resistance of all tested premium lubricants.

To achieve the best results, it is necessary to completely degrease and clean the chain before the very first application of the lubricant (e.g. with Rex Chain Cleaner). If you are applying this lubricant to an already used chain for the first time, it is great to warm it up first and then lubricate the drive during or after the trip, lubricant it flows better into the bowels of the chain.
Product features
Suitable for all seasons, dry and wet conditions, for the road and for the terrain
Ideal for racing and performance riding
Does not contain added water or diluent
Possible to ride immediately after application, no need to wait for any dripping or evaporation
Fastest undiluted and non-volatile lubricant (Wheel Energy laboratory, Tour de France 2019)
Product details
Volume 30 ml
product ID 97748
Product rating  (67 ratings)
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Chain oils and waxes from Rex
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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