The perfect bottom bracket (model F-2001E) to complete your build. Compatible with your Courselle Cycles frameset and crankset. The First Components bottom bracket is durable and performance-driven.

• BSA - 1,37" x 24T, R/L
• Weight: 295g
• 10B21 Spindle, Steel cups
• 2 pcs Sealed Bearing Mechanism
• Steel Body