Claud Butler used the Competitor name twice. In 1954 it was Model 56, a brazed-lug ten-speed with 72° parallel angles. The 1977 Competitor, in a brochure from The Holdsworthy Co., had Reynolds 531 tubing and Campagnolo Nuovo Gran Sport ten-speed gears.
Same name, different bikes1954 and 1977 Competitors are different bikes.
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
- Brazed lugs1954 · 56 — Ebykr catalogue archive, p.8
- Reynolds 5311977 — Ebykr catalogue archive, p.3
Gears and drivetrain
- ten-speed1954 · 56 — Ebykr catalogue archive, p.8
- Campagnolo Nuovo Gran Sport ten-speed1977 — Ebykr catalogue archive, p.3
Brakes
- Weinmann 500 brakes1977 — Ebykr catalogue archive, p.3
Catalogue appearances
| Year | Name as printed · model no. | Details | Source |
|---|---|---|---|
| 1954 | Competitor · 56 | Brazed lugs; 72° parallel; ten-speed. | Ebykr catalogue archive, p.8 |
| 1977 | Competitor | Reynolds 531; Campagnolo Nuovo Gran Sport ten-speed; Weinmann 500 brakes. | Ebykr catalogue archive, p.3 |
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.