Dahon Folding Bike Tire Size: Keep the K9’s 37-349 Marking

Dahon folding bike tire size is more precise in the current USA K9 table than the headline 16-inch label suggests. It names CST C1698 tyres as 16 × 1-3/8, followed by 37-349. Preserve that complete entry when identifying the original specification; shortening it to a small Dahon tyre removes useful information.

Read the Dahon folding bike tire size beside the rim entry

The K9 rim field also repeats 16-inch and 349 under Formula BOND PRO. That pairing gives an owner a specific published tyre-and-rim reference for KAA693. It does not mean the photographed bicycle has been inspected for those same markings, or that another K9 still retains its original wheels.

When replacing a tyre, photograph the complete sidewall text on the bicycle being repaired and retain the rim's readable identification. Compare those with the model record. A discrepancy needs identifying before purchase rather than being resolved by the familiar brand name on the frame.

Another 16-inch label does not fill a missing field

The current Boardwalk D7 16-inch page lists a Dahon P1159 tyre as 16 × 1.5. It does not provide the same 37-349 entry in that selected row. Do not insert the K9's number into the Boardwalk table merely because both pages use a 16-inch description.

The K3 page instead gives a CST C1653 tyre with a 14 × 1.5 label. These model-specific entries help distinguish the documented bicycles. They do not supply a universal replacement list for every compact DAHON, and this comparison does not invent missing tyre standards.

Separate replacement identity from an upgrade proposal

A listed original tyre answers what the manufacturer specifies for that build. It does not state the maximum tyre width the frame can accept, establish clearance with added fenders or certify a different wheel. If the aim is a wider tyre rather than a like-for-like replacement, identify that as a separate proposal for the supplier to assess.

BestBicycle lists this model as Dahon K9 Bike — Silver-4-Bearing. Use the named K9 listing to keep the model enquiry concrete, while obtaining compatibility information for the actual wheel and proposed tyre. The dated exhibition image shows a complete small-wheeled K9; it cannot reveal a measured diameter, pressure recommendation or usable clearance.

Keep the order request unambiguous

Include the full installed marking, the KAA693 reference where applicable and whether you need a tyre, tube or a complete wheel. Do not let those become interchangeable requests. This source comparison supplies no universal inflation pressure or approval for a different size.

FAQ

What full tyre entry does the K9 table provide?

CST C1698, 16 × 1-3/8, with the additional 37-349 marking.

Does the Boardwalk source confirm the same entry?

No. Its selected tyre row uses a different description without that full marking.

Is the original tyre width a maximum-clearance figure?

No. The cited table lists equipment, not a universal frame clearance approval.

For the difference between compact K3 and larger everyday families, consult the Dahon range guide. The model topic helps keep those family names attached to the enquiry.

Manufacturer references checked 3 November 2026: k9 (https://usa.dahon.com/products/k9), k3 (https://usa.dahon.com/products/k3), boardwalk16 (https://usa.dahon.com/products/boardwalk-d7-16).

Photograph credits and permissions

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Original title: Dahon K9, Eurobike 2025, Frankfurt am Main (P1048231).jpg

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