Fenwick's Concentrated Bike Cleaner 1L – Biodegradable, Solvent-Free, Safe on All Finishes

Fenwick's Concentrated Bike Cleaner 1L is the mid-size format of Fenwick's biodegradable bike cleaning concentrate — sitting between the compact 95ml retail bottle and the 5-litre workshop container. It's the practical choice for regular cyclists and home mechanics who go through bike cleaner frequently enough to want a larger supply, without needing the full 5-litre bulk format. At a 1:10 dilution, 1 litre of concentrate makes over 10 litres of ready-to-use cleaner — enough for many bike washes.

The formula combines surfactants and sequestrants to loosen and lift dirt molecules from the surface, making them easy to rinse away without aggressive scrubbing or harsh chemicals. It is completely free from solvents and acids, making it safe for the full range of bike surfaces: matt, carbon, gloss, anodised, plastic, rubber, and painted finishes. The biodegradable formula is safe to rinse outdoors. It can be used in two ways: diluted with water (1:10 for general cleaning, stronger for heavy grime) for frame and component washing, or used neat in a chain bath for thorough drivetrain degreasing. Decant into a spray bottle for convenient application during bike washes.

Browse the full Fenwick's range for complementary products including chain lube for re-lubing after cleaning, and the Multi-Purpose Lubricant for cables and pivot points. Explore our workshop and maintenance collection for the full range.

What It's Good For

• Dilutes to 10L+ of ready-to-use cleaner from a 1L bottle at 1:10 ratio — economical mid-size format
• Safe on all bike surfaces — matt, carbon, gloss, anodised, plastic, rubber, and painted finishes
• Biodegradable, solvent-free and acid-free — safe for bike, user, and environment
• Diluted use for frame and component washing, or neat use in chain baths for drivetrain degreasing
• Regular cyclists and home mechanics who want a larger supply than the 95ml bottle

What It's NOT Good For

• Chain lubrication — always re-lube after cleaning with a dedicated chain lube
• High-volume workshop use — the 5L workshop container is more cost-effective for frequent use
• Heavily corroded or rusted components — cleaning won't reverse corrosion damage

Frequently Asked Questions

How much ready-to-use cleaner does 1 litre make?
At the standard 1:10 dilution (1 part concentrate to 10 parts water), 1 litre of concentrate makes 11 litres of ready-to-use cleaner. For lighter cleaning, dilute up to 1:19 to make up to 20 litres. For heavier grime or chain bath use, use a stronger dilution or use neat.

What is the difference between the 95ml, 1L, and 5L formats?
All three use the same biodegradable, solvent-free concentrate formula. The 95ml bottle is ideal for home mechanics and occasional use. The 1L is the practical mid-size for regular cyclists who wash their bike frequently. The 5L container is the bulk workshop format for bike shops and high-volume users who want the best value per litre.

Is it safe on carbon frames and matt finishes?
Yes — the formula is specifically designed without solvents or acids, making it safe for carbon fibre, matt lacquer, gloss, anodised aluminium, plastic, and rubber. It won't strip protective coatings or damage delicate surfaces when used as directed.

How do I apply it for a bike wash?
Dilute 1 part concentrate with 10 parts water in a spray bottle. Spray onto the frame and components, allow to dwell for a minute or two to loosen dirt, then agitate with a brush or sponge and rinse thoroughly with clean water. For the drivetrain, use the concentrate neat in a chain bath for best results, then rinse and re-lube the chain before riding.