Keeping your drivetrain clean and well-lubricated is the cornerstone of smooth gear shifts and the longevity of your bike’s transmission system. While regular cleaning with a brush and degreaser can handle daily grime, your bike deserves a proper deep clean at least once a year. This process involves removing the drivetrain components entirely to give them a thorough scrub, ensuring no dirt or grit is left hiding in the nooks and crannies. Not only does this level of care keep your bike running like new, but it also gives you the chance to inspect parts for wear and tear.
What tools you’ll need
Before you get started, here’s a checklist of tools you’ll need:
Allen keys: Sizes vary depending on your bike, but you’ll likely need 3mm, 4mm and 5mm wrenches.
Chain whip and cassette tool: Essential for removing the cassette from the rear wheel.
Crank tools: There are a whole bunch of styles of crank bolts and bottom brackets out there so make sure you have the right ones for you bike. That said, if you skip taking your cranks off and clean your chainring with it still on your bike, we’ll still count this as a deep clean. Mum’s the word.
Degreasers and lubricants: Use a biodegradable degreaser for cleaning and a high-quality chain lube for reassembly.
Brushes: Firm-bristled brushes (even an old toothbrush will do).
Plastic tubs: Great for soaking parts in degreaser. Repurpose an old Tupperware container or ice cream tub.
Latex gloves: Protect your hands from solvents and grease.
Shop rags or towels: For drying components and wiping down grime.
Removing the drivetrain components
1. Take off the chain: Turn off the derailleur clutch if your bike has one. Use chain link pliers or a chain breaker tool to split the chain. Place it immediately into a tub of degreaser to soak while you remove other parts.
2. Remove the cranks and chainring: Again, if you have the right tools and the knowledge, keep reading. Otherwise skip this step and clean the chaining with it in situ. Loosen the chain guide, if applicable and carefully slide the cranks off the bike. Detach the chainring for a thorough cleaning and inspect the teeth for wear or damage.
3. Detach the rear derailleur and cassette: Unscrew the derailleur and remove the jockey wheels. Place them in a separate container for degreasing. Use your chain whip and cassette tool to take off the cassette, which can then be soaked in another tub of degreaser.
Cleaning each component
Soak your drivetrain components in…
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