BMX 3 Piece Crankset Crank Arms Axle Bottom Bracket Old School US Sized BLUE
BMX Crankset. Ideal for you if you are upgrading a 1-piece crank to a 3 piece crankset. BMX Crank bolts. Crank Arm Length: 170mm (centre to centre). Steel Black Finished Crank Arms. Crank Arm Material: Steel.