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Theory Euro Bottom Bracket Black 19mm Theory Euro Bottom Bracket Kit Description: The Theory Euro Bottom Bracket Kit includes 2 precision sealed bearings, 2 threaded aluminum cups to house those bearings, an internal spacer, and several spacers to dial in your bottom bracket alignment. Specifications: BB Type: External Euro Spindle Sizes: 19mm
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🇺🇸 Ship from USA · On Agora since 2025
$39.99