The Grand Prix '531' is in a 1967–68 Carlton catalogue, in Reynolds 531 butted tubing with Simplex, Criterium or Campagnolo gears.
Known components
Listed exactly as our confirmed sources give them, with the year and source for each. A part listed for one year or version may not apply to every bike, so check against yours.
Frame and fork
- Reynolds 531 butted1967 — Bulgier catalogue mirror (registrostoricocicli.com)
Gears and drivetrain
- Simplex, Criterium or Campagnolo gears1967 — Bulgier catalogue mirror (registrostoricocicli.com)
Catalogue appearances
| Year | Name as printed · model no. | Details | Source |
|---|---|---|---|
| 1967 | GRAND PRIX '531' | Reynolds 531 butted; Simplex, Criterium or Campagnolo gears. (1967–68 (from file name)) | Bulgier catalogue mirror (registrostoricocicli.com) |
Specs are as printed in the catalogue. Years are when the model appears in a source, not exact production dates.
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Sources
Last updated 19 October 2026. Every fact on this page comes from one of these.