STRONGLIGHT SOLIDA 22mm Bottom Bracket Dust Cap for Vintage Bikes CP12

On a finished vintage build, the crank dust cap disappears into the profile of the bottom bracket — yet without it the spindle end sits exposed. This STRONGLIGHT SOLIDA cap, listed under reference CP12, measures 22 mm in diameter and is made of plastic, with France given as its country of origin.

The photos provided with this listing are part of the description and, so the shape and condition of the piece can be checked directly against your own crankset.

What this dust cap is

It is a single bottom bracket dust cap for vintage bicycles, catalogued under the STRONGLIGHT SOLIDA name and the CP12 reference. The 22 mm diameter is the figure to compare with your crank before committing — this is a dimension-led part, and the measurement is stated in full above rather than left to an approximate visual match., and the manufacturer part number recorded for it is 0000.

Specifications to check before fitting

The decisive figure here is the 22 mm diameter. Where a build demands an exact period-correct finish, matching that measurement to the crank in hand is the practical starting point. The material is stated as plastic, and the country of origin as France. Nothing beyond these recorded values should be assumed about fit, thread or compatibility with any particular crankset.

Finishing a restoration

Caps of this type surface rarely as individual listings — they tend to stay attached to the cranks they were fitted to, which is why they are usually bought as spares rather than as part of a set. Anyone working through an older French bicycle and closing out the small exposed details will find the format of this reference familiar; a look through the shop's own range of pedals and crank-area components shows how these small parts sit alongside the larger drivetrain items. For assemblies of the same period, the Peugeot 46T vintage bicycle chainset, 170 mm, 14x1.25 French thread for 1-5 speed is a crankset of the same family of references. A SR LAPRADE vintage seatpost, 25.8 mm, for retro road bike Eroica belongs to the same era of French componentry and follows the same logic of matching a stated dimension to the frame.

Technical details

• Country of origin: FRANCE
• Material: Plastic
• Manufacturer part number: 0000
• Dust cap diameter: 22 mm