Fenwick's Concentrated Bike Cleaner 5L – Bulk Workshop Supply, Biodegradable & Solvent-Free

Fenwick's Concentrated Bike Cleaner 5L is the bulk workshop format of Fenwick's trusted biodegradable bike cleaning formula — the same surfactant and sequestrant-based concentrate as the 95ml retail bottle, supplied in a 5-litre container for workshops, bike shops, and high-volume users who go through bike cleaner regularly and want the best value per litre. At a 1:10 dilution for general cleaning, 5 litres of concentrate makes over 50 litres of ready-to-use cleaner — enough for a very large number of bike washes.

The formula combines surfactants and sequestrants to lift and trap dirt molecules, 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 without environmental concern. Like the smaller format, 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. The 5L container is designed for decanting into smaller spray bottles for day-to-day workshop use.

Browse the full Fenwick's range for complementary products including chain lube for re-lubing after cleaning, the 5L Chain Lube for bulk workshop lubrication, and the Multi-Purpose Lubricant 500ml for cables and pivots. Explore our workshop and maintenance collection for the full range.

What It's Good For

• Bulk workshop and bike shop supply — 5L makes 50L+ of ready-to-use cleaner at 1:10 dilution
• 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
• Decanting into smaller spray bottles for day-to-day workshop use
• Best value per litre compared to the 95ml retail bottle

What It's NOT Good For

• Chain lubrication — always re-lube after cleaning with a dedicated chain lube; see the 5L Chain Lube for bulk workshop use
• Heavily corroded or rusted components — cleaning won't reverse corrosion damage
• Individual home mechanics who don't need 5 litres — the 95ml concentrate is the better choice for personal use

Frequently Asked Questions

How much ready-to-use cleaner does 5 litres make?
At the standard 1:10 dilution (1 part concentrate to 10 parts water), 5 litres of concentrate makes 55 litres of ready-to-use cleaner. For lighter cleaning, dilute up to 1:19 to make up to 100 litres. For heavier grime or chain bath use, use a stronger dilution or use neat.

Is the formula the same as the 95ml retail bottle?
Yes — the 5L workshop container uses the same biodegradable, solvent-free and acid-free concentrate as the Fenwick's Bike Cleaner Concentrate 95ml. The only difference is the volume and format, making the 5L the most cost-effective option for high-volume use.

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 use it in a workshop setting?
Decant the concentrate into smaller spray bottles, diluting at 1:10 with water for general use. Keep the bulk container sealed when not in use. For chain bath degreasing, pour the concentrate neat into the chain bath. Label your spray bottles clearly with the dilution ratio for consistent results across the workshop.