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The Enduro Bottom Bracket BK-6034 is an entry-level solution that offers high-quality performance. This complete bottom bracket features ABEC-3 radial bearings in precision-machined aluminum cups, along with seals to protect the bearings and spacers for chain-line tuning. Designed to fit Shimano 24mm cranks into BSA threaded shells, this product is made in the USA with durable materials for long-lasting use.