National Cyclists' Union

The National Cyclists' Union (NCU) was an association established in the Guildhall Tavern, London, on 16 February 1878 as the Bicycle Union. Its purpose was to defend cyclists and to organise and regulate bicycle racing in Great Britain. It merged with the Tricycle Association in 1882 and was renamed the National Cyclists' Union in 1883.

The National Cyclists' Union selected teams for world championships and regulated circuit and track racing in England and Wales. It was a founder member of the International Cycling Association, forerunner of the Union Cycliste Internationale, the world governing body.

During and after the Second World War, the NCU became involved in a civil war with a rival body, the British League of Racing Cyclists, which defied the NCU's rules that massed-start races should be held on public roads only when they were closed to other traffic. The struggle between the two lasted for a decade, after which they merged to become the British Cycling Federation.

The British weekly, The Bicycle, said:

The NCU erected road signs warning cyclists of steep descents and other hazards. It was prompted by a member, J George Jnr, who suggested them in 1878. The idea was taken up by the Earl of Albemarle, who became president of the NCU. The NCU shared signposting with the Cyclists Touring Club but after 10 years could no longer afford it and the CTC took on the whole job. The NCU also produced publications to help cyclists tour Britain. It ran racing championships, at first open to anyone in the world. Its championships were the world's most prestigious and considered unofficial championships of the world. The NCU, which had a strict definition of an amateur, proposed to create an International Cycling Association, open to national organisations whose views of amateurism were similar to its own, and to organise world championships. The International Cycling Union was the forerunner of the Union Cycliste Internationale.

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