First things first, Dumonde Tech knows whats up.
Dumonde Tech was started in 1985 around the motorsports industry: clutch oils, engine oils and 2-stroke mix. In the bicycle world, they are known for their array of greases, and chain lubes, specifically the Lite (yellow) and Original Bicycle Chain Lubes.
What follows is an unbiased a review as possible of the Lite and Original Dumonde Tech Chain lubes. The only reported difference between the two is concentration, according to DMT -- with the light being less concentrated for easier application and optimum performance.
Consider this review relative to riding mountain bikes 5 to 6 days a week, primarily in the PNW (loam > fine dust).
How much do you know about chain lube?
The Dumonde Tech Lite and Original chain lubes are literally liquid plastic that through polymerization (via heat and pressure while riding) forms long-lasting "plating" on all chain surfaces.
But really, what does this mean?
It means that the plating bonds to the chain -- the lube literally can't be washed off! This makes for extremely environmentally friendly, durable lube that lasts and lasts and lasts. Your drivetrain can thank you later, as the more you use Dumonde Tech lube, the cleaner your chain and drivetrain will actually get -- It literally purges old (other) lube. This means that your equipment will last longer, saving you money and time.
Fun fact: Before using Dumonde Tech, we would go through two cassettes and 2-3 chains + chainrings each a year. However, once we started using Dumondetech, we can get through the entire season on the same cassette. Now, we only replace my chain and chainring really once a season.
Let's get down to the nitty gritty...
Application: Directions state, " Thoroughly clean and dry your chain before the first application of Dumonde Tech (you'll only need to do this once). Apply sparingly and wipe off excess lube with a cotton rag so that the chain's outer surface appears dry. Ride immediately.
In our experience, Dumonde Tech chain lube is easy to apply. It's thick enough that the drops land on the links as it come out of the bottle, but not so runny it leaves a spray of lube across the ground. Skin friendly too, in the event you get some on your hands...
Durability: Dumonde Tech recommends reapplying only when you start to HEAR the chain, not via appearance.
As we mentioned earlier, the lube is literally liquid plastic, so it can't be washed off. It literally bonds to chain links, extending the life of your equipment!
Despite this, regardless of lube need (via sound of course), we clean and lube our chains before every ride. Even if the ride is only a few miles -- it's more a habit than anything else. With that in mind, it's not very often we hear our chain, especially because living in the PNW, our dirt is more loam-based than other locations. With that said, in the hot summer months, or upon travel to more dusty locations, we will REALLY NEED chain lube.
Light vs Original: Relative to mountain biking, we use the original, more concentrated version when conditions are harsh. Think wet, muddy, dusty, gritty. Or.... primo conditions, but a long ride (20+ miles), where we really want to be sure we've got plenty of lube on our chain for the extent of the ride. Otherwise, we primarily use the light lube, for optimum performance: a proper balance between function and lube. You could perhaps argue we should do the opposite, however, I prefer to run light, and lube more often, than run thicker and lube only every so often. Regardless, the durability of the lube makes it particularly good for wet, sloppy conditions.
Smell: It may not smell like lavender, but it doesn't have a strong chemical smell either.
Sound: In our experience, when mountain biking, we can ride around 40 miles in the PNW on "Lite" lube before we hear our chain. Add about 15 miles for the "Original" Lube, and that's one happy cyclist. Road cycling you can expect these numbers to increase significantly (less dirt/dust, etc).
Chain Breakage? Since riding Dumondetech, we have never broken a chain (outside of your crazy mechanical). Coincidence, I think not.
All in all, we have been using Dumonde Tech for the last five years. We use it in the form of chain lube, and various greases for our bike, as well as motorcycles. Based out of Kirkland, Washington, we choose to support PNW local, and have experienced for ourselves the ridiculous durability of the Dumonde Tech product, and the extended life of our equipment. If you haven't tried Dumonde Tech, do it now!
Pro-tip: Dumonde Tech chain lube is safe for use all across your bike -- we even use it in our hubs!
Nick & Kim Hardin