STRONGLIGHT SOLIDA 22mm Bottom Bracket Dust Cap – Vintage Bike CP14

Among the small parts that decide whether a vintage crankset looks finished, the 22 mm dust cap sits at the junction of crank arm and bottom bracket spindle. This STRONGLIGHT SOLIDA dust cap is the period-correct closure for that gap. It is made of plastic, measures 22 mm in diameter, and comes from France. More than one may be present in your build: these are the caps that vanish into the profile of the crank once installed, which is precisely why the diameter matters.

The photos that appear on this page are part of the description and should be consulted as such.

Why a 22 mm dust cap matters on a SOLIDA crankset

STRONGLIGHT built the SOLIDA line as a workhorse crankset family, and the dust cap is the small element that protects the spindle end from grit and moisture ingress. If you have one of the two sides and not the other, the diameter check is the only way to be sure: 22 mm here.

• Diameter: 22 mm — measured at the cap itself
• Material: plastic
• Made in France
• Manufacturer part number: 0000

If you are chasing the marriage between a STRONGLIGHT SOLIDA crankset and the rest of a period-correct drivetrain, the logical next stop is the crankset catalog, where a Peugeot 46T chainset (170 mm, 14x1.25 French thread, 1–5 speed) can anchor the same build. For the spindle interface itself, see the saddle clamp section — not a direct match, but often the same buyer's list of small period-correct hardware.

Key specifications

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

One detail worth stating plainly: this is a small part and it does not come with a crankset. It is the cap only. Restorers who work on French vintage drivetrains tend to keep a small stock of these diameters on hand, since a cap sourced once can serve several frames across a season of builds. Whether it matches your crankset depends entirely on the 22 mm measurement and the profile of the arm — check against your existing cap before fitting.