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Vehicles and transport

Penny-farthing cycle

A penny-farthing cycle is a type of early bicycle with a large front wheel and a much smaller rear wheel.

Also known as: ordinary bicycle, high wheeler

How big is it?

1.55 m · defined overall length

Also 5.085 ft

Defined overall length · defined specimen
Typical recorded range: 1.4 m to 1.7 m.

Scale illustration of a penny-farthing cycle, showing the recorded defined overall length.
Recorded defined overall length: 1.55 m.

A little perspective

Penny-farthing cycle vs Brain coral colony: length comparison

The overall length of a penny-farthing cycle is about 1.03 times the colony diameter of a brain coral colony.

Scale
Penny-farthing cycle

A penny-farthing cycle is a type of early bicycle with a large front wheel and a much smaller rear wheel.

1.55 mDefined overall length
0 - shared origin
Brain coral colony

A brain coral colony is a living mound-shaped formation of coral polyps that secrete a grooved, dome-like calcium carbonate skeleton.

1.5 mDefined colony diameter
0 - shared origin

Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.

Measurements, assumptions & sources +

Penny-farthing cycle

Defined overall length: 1.55 m; defined specimen; range 1.4 m–1.7 m.

A defined penny-farthing 1.55 m long and 1.50 m high with a 14 kg mass. Historic and modern replica wheel diameters vary.

Defined examples — our methodology

The marked defined overall length is calibrated. Unmeasured illustration details are representative.

Brain coral colony

Defined colony diameter: 1.5 m; defined specimen; range 60 cm–2 m.

A defined massive brain-coral colony 1.5 m across with a 900 kg wet skeletal mass. Species, growth form and cavities vary; the living grooved dome, not attached reef rock, defines the diameter.

Smithsonian Ocean — Corals and coral reefs

The marked defined colony diameter is calibrated. Unmeasured illustration details are representative.

Use the visual comparison to explore its scale, then check the measurements and sources.

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Why this measurement?

Why we use 1.55 m

We compare the overall length of a penny-farthing cycle. This is an illustrative comparison value, not a claim that every example is the same. The recorded range is 1.4 m to 1.7 m.

A defined penny-farthing 1.55 m long and 1.50 m high with a 14 kg mass. Historic and modern replica wheel diameters vary.

The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →

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Recorded properties

Dimensions and measurements

PropertySelected valueRecorded rangeBasis
1.55 m1.4 m to 1.7 mdefined specimen
1.5 m1.4 m to 1.6 mdefined specimen
14 kg11 kg to 17 kgdefined specimen

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Sources and method

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The source records and measurement method remain available for inspection.

Read the measurement and artwork methodology →

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