Bombtrack Hook Cockpit Sizes: Stem Length, Flare and Spacers
Bombtrack Hook cockpit sizes change with the frame group in the saved specification. XS and S receive an 80 mm stem, Medium receives 90 mm, and Large and XL receive 100 mm. That three-way split is useful when comparing complete builds, even though the handlebar’s model name stays the same.

Bombtrack Hook cockpit sizes include a three-group stem record
The stem is a forged-aluminium Bombtrack Roam with a published angle of minus seven degrees. Its length groups describe the listed equipment; they do not prescribe an individual riding position. A Medium bicycle with a replaced stem may no longer match the original 90 mm entry.
The cockpit also names a CX-10 drop bar, 31.8 mm and ten degrees of flare. The saved text does not state a handlebar width. Keep that missing value visible when a seller or search result supplies another dimension without identifying its source. The familiar bar name cannot fill every measurement.
Do not compress the headset into one diameter
The technical section gives the S.H.I.S. string EC34/28.6 | EC44/40 and a 36-degree crown-race angle. The broader fork and headset descriptions also use the tapered 1½-inch to 1⅛-inch wording. Reproduce these labels with their component context rather than treating them as interchangeable cockpit widths.
The spacer inventory is one 10 mm piece and two 5 mm pieces. That is a published component list, without a personal bar-height recommendation or a maximum permitted spacer arrangement. The record does not supply a stem-bolt torque or instructions for altering the steerer assembly.
Ask about the complete offered arrangement
The catalogue listing is Bombtrack Hook Bike — Metallic Black. Its size options provide a clear label for a supplier enquiry: name the frame size and ask which bar, stem and headset arrangement is actually supplied. Where hand position matters, request the missing dimensions instead of inferring them from flare or nominal stem length.
The old Hook 2 MY19 image shows a real drop-bar arrangement, but it is not a measurement of this CX-10/Roam package. The Bombtrack topic and brand introduction cover the wider family. Preserve the documented size groups without turning a catalogue comparison into a fit assessment.
FAQ
Which stem length is assigned to Medium?
The saved table assigns the Medium build a 90 mm stem.
Does ten-degree flare specify the bar’s width?
No. A separate handlebar-width value is absent from the saved text.
Does the spacer list prescribe an individual bar height?
No. It records supplied pieces without an adjustment recommendation.
Sources
The cockpit table supplies three stem-length groups, a flare entry and headset identifiers, without a handlebar-width value. See the manufacturer’s saved steel Hook record (https://bombtrack.com/products/bombtrack-hook), captured 26 October 2026 and reread 5 November 2026.
Photograph credits and permissions
Photograph 1
Original title: Bombtrack Hook 2 MY19
Creator: www.velo-radsport.de; creator URI: https://www.flickr.com/photos/velo-radsport/
Copyright notice: Embedded sRGB ICC profile notice: Copyright (c) 1998 Hewlett-Packard Company. This identifies the colour profile, not the photograph author; no separate photographer copyright notice was supplied in the inspected image metadata.
Original source URI: https://www.flickr.com/photos/velo-radsport/47821053362/
License / permission: CC BY-SA 2.0 Generic
License / permission URI: https://creativecommons.org/licenses/by-sa/2.0/
Modification notice: Source-offered 2600 × 1733 original JPEG retained byte for byte with EXIF, IPTC/Photoshop resources, XMP and ICC profile. No local crop, resize, recompression, colour edit or metadata removal. Source EXIF/XMP records Adobe Photoshop Elements 15.0 processing before retrieval.
Source disclaimer: Historical Bombtrack Hook 2 MY19 photograph; MY19 is supplied in the source title, not inferred from upload date. Related Bombtrack brand context only; not proof of the current named build, SKU colour, components, geometry, fit, compatibility, cargo capacity or condition. No endorsement is implied. CC BY-SA 2.0 applies to the unchanged photograph; retain attribution and notices, provide the license URI, and make adaptations available under an applicable share-alike license. No additional restrictions or warranties are implied; other rights may apply. Exact license name: Creative Commons Attribution-ShareAlike 2.0 Generic.