16 Inch Bike Geometry: Preserve the GO 3 Unit Mismatch
16 inch bike geometry deserves a closer look when the metric and inch values beside one heading do not agree. The GB woom GO 3 table prints horizontal top-tube length as 407.1 mm alongside 15 inches. Those values are not equivalent. Keep the source pair intact and seek clarification rather than silently publishing one as a corrected specification.
16 inch bike geometry: preserve the top-tube pair
The inconsistency appears under entry D in the manufacturer's GO 3 geometry table (https://woom.com/en_GB/bikes/go-3). Fifteen inches converts to 381 mm, so it cannot be an exact conversion of 407.1 mm. That arithmetic identifies the discrepancy; it does not establish which measurement describes the manufactured frame.
A comparison worksheet should therefore say “horizontal top tube: 407.1 mm / 15 inches as printed; clarification needed”. Do not average the entries, present the conversion as a replacement model specification or assume a photograph can settle the difference.

Read the neighbouring headings independently
The table separately gives cockpit or handlebar height as 698 mm (27.5 inches), wheelbase as 711.2 mm (28 inches) and stand-over height as 410 mm (16.1 inches). These headings refer to different dimensions. A nearby number cannot be moved into the top-tube field merely because its size looks plausible.
The seat-tube angle is another separate entry, at 68 degrees. An angle is not a length and should retain its own unit. Keeping the headings and units attached makes the record useful to someone checking the source without implying that every entry has been independently measured here.
Ask for the applicable geometry, not an unofficial correction
The listing identifies woom GO 3 - Fully Equipped - 16 inches - 4 – 6 Years - powder pink - bubble gum blue Bike. The local Fully Equipped GO 3 product gives the catalogue identity to attach to an enquiry. Ask which regional geometry sheet applies to the bicycle being supplied and quote the conflicting top-tube pair exactly.
The GB standard GO 3 record does not itself prove every dimension of that local package. Nor does a confirmed dimension certify individual fit. The launch photograph supplies related family context and contains no scale or measurement procedure for resolving this table.
Keep the unanswered field flagged while obtaining clarification. The practical result is a comparison that distinguishes established labels from an unresolved conversion, rather than a neat-looking chart with an invented answer. Find further model context in the woom introduction and wheel-size context in the 16-inch collection.
Geometry-unit FAQ
Are 407.1 mm and fifteen inches equivalent?
No. Fifteen inches equals 381 mm, revealing the printed mismatch.
Has this article selected a corrected top-tube length?
No. The manufacturer's applicable clarification is still needed.
Can the stand-over entry replace the top-tube entry?
No. They are separately labelled dimensions serving different questions.
Photograph credits and permissions
Photograph 1
Original title: woom-GO-Campaign-Mood_IMG_9204_RET.png
Creator: Individual photographer not supplied. Copyright holder: woom GmbH; rights-holder URI: https://woom.com/
Copyright notice: © woom GmbH. Embedded sRGB IEC61966-2.1 profile notice: Copyright (c) 1998 Hewlett-Packard Company. This is a colour-profile notice, not the photographer identity.
Original source URI: https://woom.com/en_INT/press-release/woom-GO-READY
License / permission: Manufacturer editorial permission
License / permission URI: https://woom.com/en_INT/press-release/woom-GO-READY
Modification notice: Existing manufacturer-provided 2800 × 1867 PNG web derivative retained byte-for-byte. No local crop, resize, recompression, retouching or metadata removal. Supplied EXIF and ICC retained; earlier source processing unassessed.
Source disclaimer: 2025 GO launch family imagery: foreground pink GO 2 with 14-inch fork marking and rear blue GO 3 with 16-inch marking. The rear bicycle supplies related GO 3 family context, not proof of standard versus AUTOMAGIC gearing, a delivered Fully Equipped package, current colour, components, fit, load rating or condition. Release heading 4 March and body Vienna 5 March 2025 are publication statements, not capture or manufacture dates. Editorial woom reporting only; no advertising, endorsement or unrelated redistribution grant inferred. Expired linked share access was not bypassed. Exact source permission: These images may only be used in relation to woom for editorial purposes.