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24 Inch Bike Thru Axles: Keep Front and Rear Sizes Separate

24 inch bike thru axles need a front or rear label beside their dimensions. The OFF AIR 5 is a useful example because its two published entries differ. A request for “the axle for a 24-inch woom” leaves out the position that changes the answer before any further replacement details are considered.

24 inch bike thru axles: put the position first

The current US OFF AIR 5 specification prints 100 × 15 mm for the front and 135 × 12 mm for the rear. Its suspension-fork section repeats the front entry. Record the two positions on different lines rather than combining the figures into one bicycle-wide size.

Those entries identify dimensions of the documented wheel arrangement. They do not supply the complete replacement axle's overall length, thread pitch or ordering code. A part advertised with one matching number still needs confirmation against the actual fork or frame.

Copper-coloured woom OFF AIR bicycle with a suspension fork, disc brakes and black wheels in the manufacturer's OFF AIR 5 product photograph
woom OFF AIR 5 in terra coppa, identified in the manufacturer's 2023 Release B asset. Historical model context; capture date unknown, not verification of a current delivered build. Manufacturer-provided 3to2 JPEG, unchanged. Photo: © woom GmbH; editorial reporting about woom.

Add the hub and spoke description when relevant

woom describes aluminium hubs with sealed industrial bearings. The wheel section also lists 20 G14 spokes, double-crossed spoking and aluminium nipples. These details make a wheel record more informative, but they do not publish every replacement spoke's length or a wheel-building procedure.

Explain whether the enquiry concerns an axle, hub, rim or spoke. If several parts are damaged, list those observations separately. The wheel diameter names the general category; the position and affected component tell the supplier what information is needed next.

A tool size belongs in a separate field

The page's enclosed-tools entry names an 8 mm hex key for the front wheel and pedals. That tool measurement should not be substituted for the front axle's 15 mm entry. These are different quantities, so their different numbers are not evidence of a specification conflict.

The listing identifies woom OFF AIR 5 - Kids’ bike - 24 inches - 7 – 11 Years - terra coppa. The terra OFF AIR 5 page supplies the model identity. Send that identity, the affected wheel position and readable markings when requesting the correct part and installation guidance. This article gives no fastening torque, adapter approval or wheel-removal sequence.

Axle-record FAQ

Which end has the 135 × 12 mm entry?

The rear wheel has that entry in the US specification.

Does a wheel diameter identify a complete axle?

No. Position and further exact-part information remain necessary.

Is the 8 mm hex key an axle diameter?

No. It is a separately listed tool size.

Find 24-inch bicycle guides and the woom brand story.

US component record: OFF AIR 5 specifications (https://woom.com/en_US/products/woom-off-air-5-kids-mountain-bike).

Photograph and rights: exact OFF AIR 5 asset (https://mediahub.woom.com/share/9667A3CD-2F99-4B13-B7393693039A3E85/?viewType=grid&mediaId=C0188C0A-6801-4786-95EFEAF5DF72DA39); manufacturer editorial permission (https://woom.com/en_PL/press-release/woom-off-air).

Photograph credits and permissions

Photograph 1

Original title: woom_OFF_AIR_5_Left_View_terra_coppa_product

Creator: Individual photographer not named; copyright holder woom GmbH; rights-holder URI: https://woom.com/. Added-by Stefanie Luger is not identified as photographer.

Copyright notice: © woom GmbH. Embedded sRGB IEC61966-2.1 colour-profile notice: Copyright (c) 1998 Hewlett-Packard Company; this is profile copyright, not photographic authorship.

Original source URI: https://mediahub.woom.com/share/9667A3CD-2F99-4B13-B7393693039A3E85/?viewType=grid&mediaId=C0188C0A-6801-4786-95EFEAF5DF72DA39

License / permission: Manufacturer editorial permission

License / permission URI: https://woom.com/en_PL/press-release/woom-off-air

Modification notice: Manufacturer-provided 3to2 JPEG derivative, 1500 × 999; not original TIFF. Exact JPEG bytes retained unchanged, no local crop, retouching, recompression or metadata removal. Original EXIF resolution fields and embedded sRGB ICC retained; prior processing unassessed.

Source disclaimer: 2023 Release B OFF AIR 5 terra coppa product imagery; actual capture date unknown. Related woom editorial context, not delivered current configuration, fit or condition proof. Exact press permission: These images may only be used in conjunction with media coverage about woom. Asset use permits passing to press only in reporting on woom, worldwide online; no unrelated redistribution or OOH use. Woom license is non-exclusive, non-sublicensable, non-transferable, indefinite absent an asset date and revocable in writing; no changes except resizing; required copyright notice retained.

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