Motul Chain Lube Wet review – eco, efficient, and economical wet lube from the Moto experts

Motul is a familiar name at the top end of the motorsports world, and its latest Chain Lube Wet puts all of that experience to good use in an effective but still eco-friendly product

Bottle of bike chain lube sitting on leaves and mossy wood stump
(Image: © Neal Hunt)

Bike Perfect Verdict

A great wet lube that's not too heavy or sticky, and the Ester technology appears to work as it stays in place better than most, even in the worst of weather.


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    Easy to apply

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    Goes on like a dry lube with minimal mess

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    Stays in place in the worst of conditions

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    Doesn't create a heavy, sticky grinding paste

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    Solid eco credentials


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    Doesn't last as long as heavier lubes

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Motul might be a new name to some mountain bikers, but the company has been a huge player in the high-end motorsports arena for over a century now, being one of the first brands to bring semi-synthetic and fully synthetic oils to the automotive world. Its latest range of bicycle lubricants uses Ester technology, where a blend of high-performance synthetic-based oils and additives are mixed to create a lubricant that is attracted to metal at a chemical level. That sounds like it could be perfect for keeping your drivetrain running smoothly and quietly, but how does it compare to the best chain lubes?

Bike chain lube bottle with lid off with leaves and mossy wood stump in background

The narrow nozzle does a great job of controlling the flow rate (Image credit: Neal Hunt)

Design and specifications

Motul’s Chain Lube Wet uses a biodegradable organic base lubricant made with fossil fuel-free materials reinforced with Ester base materials. This, in turn, is enhanced with Boron Nitrides that offer enhanced wear protection properties, which in theory, despite sounding like a chemistry lecture, should add up to a lube that stays in place whilst protecting the moving parts of your chain and drivetrain.

It's the use of Ester materials that really makes it unique. They were first used in jet engine technology over 50 years ago, and incorporated by Motul in 2011 in motorsports applications. An Ester material can have many key properties, but in this case, it is used to help the lubricant electrostatically stick to any positively charged metal surface. When used on a bike chain, this will hopefully mean it stays attached to the inner links and rollers better to keep it running smoother for longer in grimy, wet conditions. Motul says it works particularly well in wet and humid conditions, though sadly, humid conditions are a distant memory here currently in the Northern Hemisphere.

It's all contained in an understated, battleship gray bottle made with 100 percent bio-sourced plastic, which is fully recyclable and adds further to Motul’s greener credentials. It's a fairly standard squeezy-type bottle, but it has a much narrower spout than most to give you more application control and minimize waste. 

Closeup of someone's hand applying bike lube to chain

I found applying just the right mount to each link post ride was easy (Image credit: Neal Hunt)


At this point, I should say I generally don't like using wet lubes. They can be too heavy and messy, and when used off-road, particularly in the gritty, sandy conditions I often ride in, they can do more damage than good, making a horrible, claggy mess that takes forever to clean. Not so here though, I'm happy to report.

The application is more like a standard dry or all-weather lube and feels noticeably thinner than some oil-based wet lubes. I always degrease and dry a chain thoroughly before applying lube, and tend to drip slowly from above onto the chain rollers when the bike is in a stand, then leave it for a few minutes to let it get into the rollers and wipe off any excess with a rag. The narrow spout was good, letting me drop just the right amount onto each link without any waste or unnecessary mess, and the thinner-than-normal formula looked like it was absorbed into the gaps between the links and rollers well.

Closeup of bike chain

There's minimal mess when compared to other oil-based wet lubes (Image credit: Neal Hunt)

It sets pretty quickly and leaves a fine film after a few minutes, but again, it feels more like the fine coating you get from a good dry lube and is noticeably less sticky than other heavier wet options. It's been a very damp winter here in Yorkshire, UK, so I've had plenty of chances to use it on various gravel and trail bikes and found the performance similar on whatever I was riding. It stays remarkably clean, with little of the usual gritty black paste build-up on jockey wheels or chainring, yet it would work for multiple rides in all but the very worst wet conditions.

My most recent ride was a wet and wild 95km Peak District epic. Normally, I'd expect the chain to make protest noises towards the end of a ride, but not here. The SRAM AXS Rival gearing was running as smoothly as when I set off – if only the same could be said of the rider. It stays put remarkably well, and even when cleaning after a ride, water beads off the chain unless a degreaser is used, which I can only assume is a positive effect of the Ester technology.

Unusually, there aren't any efficiency claims from Motul. However, there was little difference in my non-scientific spinning of the gears in my bike stand test than I'd expect from a normal dry or ceramic lube setup, and no noticeable increase in drivetrain drag.

It's remarkably good value, too, at $4.57 for a 100ml bottle, which is cheaper than most of the offerings from established brands like Muc-Off and Peatys. If you like to run a very heavy chain lube, this might not be for you, but if you value performance and want something closer to a dry lube that lasts, this could be just what you were looking for.

Closeup of bike chain on bike

Even after long winter rides, the lube still repels water admirably, lasting well for multiple uses (Image credit: Neal Hunt)


A high-performance lube that, despite feeling thinner than others, lasts well and doesn't come with a lot of the drawbacks a wet lube normally has. Greener credentials and value for money only elevate my opinion of it. All in all, a great product that quietly gets on with what it was designed for with no fuss, minimal mess, and at a very reasonable price.

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Tech specs: Motul Chain Lube Wet

  • Price: $4.57 / £8.49 / €9.55
  • Size: 3.3oz / 100ml 
  • Drip bottle: Consumer-recycled plastic
  • Details: Biodegradable organic base lubricant reinforced with Ester materials and Boron Nitride additives
Neal Hunt
Freelance Writer

Neal has been riding bikes of all persuasions for over 20 years and has had a go at racing most of them to a pretty average level across the board. From town center criteriums to the Megavalanche and pretty much everything in between. Neal has worked in the bicycle industry his entire working life, from starting out as a Saturday lad at the local bike shop to working for global brands in a variety of roles; he has built an in-depth knowledge and love of all things tech. Based in Sheffield, UK, he can be found riding the incredible local trails on a wide variety of bikes whenever he can