BSD Substance Mid BB (Black)

5150 BMX Verified independent store

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Substance bottom bracket kits include 2 Sealed bearings, CNC'd spacers, tube spacer, sprocket bolt and all the spacers you need for adjustment. Need help choosing the right part? M essage us on Instagram, YouTube, Facebook, or TikTok. All parts ship fast from 5150BMX.com — support core BMX. View all BSD products Show more