For GXP bottom bracket set, black Left, aluminum Crank Arm for SRAM "GX Eagle". Damaged or defective? You can easily replace the left crank arm of your "GX Eagle" crankset with this part. The aluminum arm is available in 175 mm length and is suitable for the GXP bottom bracket set. Number of chainrings none Crank length 175.00 mm Main color black Bottom bracket GXP Type/kind Article Variation left