Model W.45 appears in the 1951 and 1952 Claud Butler catalogues as the Sprint 'Road/Track', a low-temperature welded Reynolds 531 frame. In 1953 and 1954 it is listed as the Road Track, a fixed-wheel dual-purpose machine, and in the catalogue of about 1955 the W.45 number belongs to the International Sprint.
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
- Low-temperature welded1951 · W45, WE.45a — Ebykr catalogue archive, p.11; 1952 · W45, WE.45a — Ebykr catalogue archive, p.11
- Reynolds 531 butted1951 · W45, WE.45a — Ebykr catalogue archive, p.11
- Reynolds 531 or KROMO1953 · W.45, W.45a — Ebykr catalogue archive, p.12
- Welded1955 · W.45, W.45A — Ebykr catalogue archive, p.9
- 1⅛in top tube1955 · W.45, W.45A — Ebykr catalogue archive, p.9
Gears and drivetrain
- Fixed-wheel1953 · W.45, W.45a — Ebykr catalogue archive, p.12
Wheels and tyres
- Fiamme 27in alloy rims1951 · W45, WE.45a — Ebykr catalogue archive, p.11
- tubulars1951 · W45, WE.45a — Ebykr catalogue archive, p.11
Catalogue appearances
| Year | Name as printed · model no. | Details | Source |
|---|---|---|---|
| 1951 | Sprint, "Road/Track" · W45, WE.45a | Low-temperature welded; Reynolds 531 butted; Fiamme 27in alloy rims; tubulars. | Ebykr catalogue archive, p.11 |
| 1952 | Sprint, "Road/Track" · W45, WE.45a | Low-temperature welded. | Ebykr catalogue archive, p.11 |
| 1953 | Road Track · W.45, W.45a | Fixed-wheel dual-purpose; Reynolds 531 or KROMO. | Ebykr catalogue archive, p.12 |
| 1954 | Road Track · W.45, W.45a | Dual-purpose track and road. | Ebykr catalogue archive, p.12 |
| 1955 | International Sprint · W.45, W.45A | Welded; 1⅛in top tube. (About 1955) | Ebykr catalogue archive, p.9 |
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.
- Ebykr catalogue archive: Claud Butler 1951 catalogue (transcription) (p.11)
- Ebykr catalogue archive: Claud Butler 1952 catalogue (transcription) (p.11)
- Ebykr catalogue archive: Claud Butler 1953 catalogue (transcription) (p.12)
- Ebykr catalogue archive: Claud Butler 1954 catalogue (transcription) (p.12)
- Ebykr catalogue archive: Claud Butler catalogue of about 1955 (transcription) (p.9)