Mercian's 1998 frame brochure describes the Double Marathon tandem as similar to the Super Tourist, but with a 28.6mm tube running from the head to the rear bottom bracket shell. The frame was £975 plus VAT.
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
- the main difference is a 28.6mm tube from the head brazed to the rear bottom bracket shell1998 — Velopedia (Historische Fahrräder e.V.)
Catalogue appearances
| Year | Name as printed · model no. | Details | Source |
|---|---|---|---|
| 1998 | Double Marathon Tandem | Similar to the Super Tourist; the main difference is a 28.6mm tube from the head brazed to the rear bottom bracket shell; frame £975.00 + VAT (£1,145.62 including VAT) | Velopedia (Historische Fahrräder e.V.) |
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.