The wolf prophesied to devour the sun. Bound by chains forged from impossible things — and destined to break them.
Chain lubes, drivetrain treatments and bike-specific formulas engineered to be hunted, not bound. Built for cyclists who understand that a free chain is a fast chain.
In Norse myth, Fenrir was the wolf the gods feared most — so powerful they could only restrain him with Gleipnir, a chain forged from six impossible things: the sound of a cat's footfall, the breath of a fish, the roots of a mountain.
Every cyclist has felt the same fight. A chain that should glide free, dragged by old grease, contaminated grime, and the wrong chemistry. Watts stolen. Kilometres lost.
Fenrir is the chain Gleipnir cannot bind. Our chain lubes are formulated to be impossible to drag — to flow through the rollers, repel the dust, and refuse to give the drivetrain any reason to slow you down.
Each Fenrir chain lube is engineered for a specific environment. The chemistry — wax content, base oil viscosity, solid lubricant loading, water resistance — is tuned to the conditions you actually ride in.
MoS₂-fortified dry lube for clean conditions. Penetrates rollers, dries to a low-friction film, and keeps the drivetrain quiet across long dry summer rides.
Plant-based formulation engineered to outperform petroleum lubes in wet conditions. Biodegradable base oils, exceptional water displacement, no compromise on durability.
The do-everything formula. Synthetic blend with PTFE for year-round performance — handles road grit, dust, rain, and the British weather without you switching bottles.
Heavy-duty formula for mud, sand, and downhill abuse. Higher viscosity, tackifier additives to resist throw-off, designed for races where the chain takes punishment.
Citrus-based deep clean for cassettes, chainrings, and chains. Strips contamination without attacking seals or rubber components. Use before relubing — every time.
All-Weather Lube + Degreaser + microfibre + applicator brush. Everything you need for proper chain care in one box. Save vs buying individually.
The wrong lube can cost you watts and wear out your drivetrain in months. Match the formula to where you actually ride.
Clean roads, summer gravel, dry trails. You want a lube that dries to a film, doesn't attract dust, and stays clean between applications.
British winters, monsoon rides, sloppy gravel. You need a lube that displaces water aggressively, sticks through downpours, and won't strip in the first 20 km.
The honest pick for most cyclists. One bottle for every season, every condition. PTFE-fortified synthetic that handles dry, wet, and everything between.
Every Fenrir formulation is rolled through the same tribology discipline that defines the Ragnar standard — but specifically tuned for the materials, loads, and contamination patterns of modern bike drivetrains. Tested on 9-, 10-, 11- and 12-speed systems across road, gravel, and MTB.
"Switched my whole team to Fenrir Bio for the wet season. Drivetrains lasted 40% longer."
"All-Weather is the only lube I trust on multi-day races. Doesn't quit when conditions change."
"Moly for the dry weeks, Bio when the storms hit. Two bottles, every condition handled."
Every Fenrir chain lube, degreaser, and care kit — plus our full sister-brand range. Specialist filtering by drivetrain, condition and bike type. Trade and consumer pricing.
Shop Fenrir on Hub
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