Fully sealed USA bottom bracket to restore your old/mid-school build.
Features
– High-quality sealed bearings in alloy CNC bearing cups
– Includes cones & spacers to adjust chain lines.
– 51mm Inner bearing spacer
– Includes cones & spacers to adjust chain lines.
– 51mm Inner bearing spacer
Specifications
Material – alloy cnc cones, sealed bearing
Size – us bb for 19mm spindle








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