Every watt counts. You might already obsess over aero helmets, fast tyres, and fuelling strategies but what about your chain? Is your chain a greasy dirty mess or is it smooth as butter?
Why Wax a Chain?
- Cleaner ride – Waxed chains attract less dirt and grime than oily lubes, meaning less time wiping down your drivetrain.
- Longer chain life – With reduced grit grinding away at your links, your drivetrain lasts longer.
- Lower friction – Paraffin wax creates a smooth, low-resistance surface that can shave off wasted watts.
- Race-ready cleanliness – No black grease streaks on your legs or kit before a big race.
DIY a Waxed Chain
The first time you wax a chain, it feels a bit more “workshop” than a quick squirt of lube, but once you’ve got the process nailed it’s surprisingly straightforward.
- Strip the factory lube – New chains come with a sticky coating. Use a strong degreaser or mineral spirits to completely clean it.
- Rinse and dry – After degreasing, rinse with isopropyl alcohol and let the chain dry fully.
- Melt the wax – A slow cooker works perfectly. Drop in paraffin wax pellets and let them melt down.
- Soak the chain – Lower the clean chain into the molten wax and gently stir to make sure every link is coated.
- Hang and harden – Remove, hang it up, and let the wax set. Once hardened, flex the chain a little to break it in.
Re-waxing is easy. Just pop the chain back into the pot after a few hundred kilometres (or sooner if you’ve raced in rain).
Performance Gains
The big reason triathletes love waxed chains: free speed. Tests consistently show that waxed chains reduce drivetrain friction compared to standard lubes.
- Zero Friction Cycling has detailed lab data on chain waxing and efficiency.
- Friction Facts (now part of CeramicSpeed) demonstrated that waxed chains save 2–5 watts compared to traditional lubes.
- Even mainstream cycling media like CyclingTips back up the performance and longevity claims.
Should You Switch?
If you’re looking for a simple “set and forget” solution, bottled lube is still fine. But if you want a drivetrain that’s clean, efficient, and built for race day performance, waxing is worth the small bit of extra effort. Or you can buy chains prewaxed for those that require a more click and pay level of gains!