The Schwinn Sprint has an incredibly important place in the history of the derailleur. When Schwinn, the leading opinion-former amongst US bicycle makers, rebranded the Huret Allvit with its own precious name it was the definitive sign to the world that derailleurs were ready for the mass market.

Despite its historic role, I always disliked the Huret Allvit and all its progeny. It weighed a ton, its adjustment screws were all over the place and most of all it had too many flat plates joined by too many dodgy pivot bolts. In British weather it either rapidly loosened off and became horribly imprecise or it rusted solid. Perhaps the good folk of Chicago put away their bikes for the winter.

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This is a very well used 1967(?), Schwinn Sprint. Some of its attributes are:

• On the logo on the main arm, the background behind the word 'Sprint' is silver.
• It has a conventional Huret-style hanger plate with 'Sprint' written on it.
• The pulley cage spring is trapped by a set of 2 hooks integrated into the outer pulley cage plate.
• It has Huret's signature steel, ball bearing pulley wheels with round plastic 'tyres'.

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• Derailleur brands: Schwinn, manufactured by Huret
• Country: USA, manufactured in France
• Date of introduction: 1967?
• Date of this example: unknown
• Model no.: unknown
• Weight: 307g including hanger plate
• Maximum cog: 32 teeth (Sutherland’s 4th edition)
• Total capacity: 32 teeth (Sutherland’s 4th edition)
• Pulley centre to centre: 44mm
• Index compatibility: friction
• Chain width: 3/32”
• Logic: top normal
• B pivot: unsprung
• P pivot: sprung
• Materials: largely steel with one bronze parallelogram arm

Ref. 304