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BH Aerolight Rear Light Mount: Why the Ultralight Drawing Needs a Separate Check

A BH Aerolight rear light mount enquiry benefits from the complete parts drawing. The 2026 Aerolight manual shows rear-light assembly 387435700 with a light, bolt, magnetic coupling and frame coupling. The Ultralight manual repeats the assembly reference but explicitly excludes that frame coupling from Ultralight assembly.

Complete black-and-blue BH G6 drop-bar road bicycle with rim brakes and deep-section wheels
Historical BH G6 road bicycle photographed by Glory Cycles in February 2014. Original title: BH G6. CC BY 2.0; original JPEG unchanged. This older rim-brake bicycle provides adult road-brand context. It does not show the current model or verify the component interfaces, equipment clearances or installation discussed here. Photograph source (https://www.flickr.com/photos/glorycycles/14245137842/)

Read the BH Aerolight rear light mount parts list

Page 15 of the Aerolight manual lists the four components separately. A request for a “rear light mount” could mean the magnetic coupling, frame coupling or another item. Identify the missing or damaged piece rather than assuming that every seller supplies a complete kit.

Give the dealer the bicycle’s model and version together with the drawing and any existing component markings. A shared assembly reference is useful for the enquiry, but the actual supplied contents and applicable installation still need confirmation for the bicycle.

Notice the Ultralight frame-coupling exception

The 2026 Ultralight drawing on page 13 marks the frame coupling with an asterisk and says it does not assemble on Ultralight models. This is a clear reason to read the component notes even when the overall rear-light reference looks identical.

Do not copy the Aerolight assembly arrangement to an Ultralight solely because both documents print 387435700. Ask which components are required for the actual frame. The exception also prevents treating an unused item in a kit as evidence that the bicycle is missing a fitting.

Separate attachment hardware from lighting performance

These parts diagrams address the mounting components. They do not establish brightness, battery runtime, radar compatibility or current stock. If the enquiry concerns those features, obtain the specification for the actual light rather than deriving it from the mounting illustration.

For replacement hardware, retain the confirmed reference and the workshop’s installation record. The historical G6 photograph illustrates BH road context only; it does not show either modern mounting arrangement. The model-specific drawings supply the evidence for the component distinction explained here.

FAQ

What rear-light assembly reference appears in both documents?

Both inspected manuals list the same rear-light assembly reference, 387435700.

Which component is excluded in the Ultralight note?

The frame coupling is marked as not assembled on Ultralight models.

Does a common reference prove identical mounting on both bicycles?

No. The model-specific component note must also be read.

Describe the particular coupling when requesting a replacement. Further BH bicycle references sit alongside the existing guide to the brand’s families.

Primary references: BH manufacturer manual 1 (https://www.bhbikes.com/download/bancorecursos/manuales/ENG/2026/2026_AEROLIGHT_ENG_USER_MANUAL.pdf); BH manufacturer manual 2 (https://www.bhbikes.com/download/bancorecursos/manuales/ENG/2026/2026_ULTRALIGHT_ENG_USER_MANUAL.pdf).

Photograph credits and permissions

Photograph 1

Original title: BH G6

Creator: Glory Cycles; creator URI: https://www.flickr.com/photos/glorycycles/

Original source URI: https://www.flickr.com/photos/glorycycles/14245137842/

License / permission: CC BY 2.0

License / permission URI: https://creativecommons.org/licenses/by/2.0/

Modification notice: Original JPEG bytes unchanged.

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