Fenwick's FS-1 concentrate (1l) review

Fenwick's FS1 bike cleaner
Cycling Weekly Verdict

You'll still be getting excellent value - only £2 per litre, it's biodegradable and smells nice too.

Fenwick's FS-1 is a versatile cleaner.

Used at full strength it's an effective degreaser, happily shifting thick grime off chains and sprockets.

Diluted, as recommended, one part to 10 parts water, it's not brilliant, still needing plenty of elbow grease with a stiff brush to break up road grime.

A higher concentration has the desired effect - we tried 1:5, which was much better.

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Founded in 1891, Cycling Weekly and its team of expert journalists brings cyclists in-depth reviews, extensive coverage of both professional and domestic racing, as well as fitness advice and 'brew a cuppa and put your feet up' features. Cycling Weekly serves its audience across a range of platforms, from good old-fashioned print to online journalism, and video.