German DIN 32711-P3 Polygon interface provides 100% surface contact between spindle and crankarm
Forged and then machined 7050 Aluminum arms
30mm heat treated cromoly spindle
14mm pedal thread engagement
High quality electroless nickel spindle coating
Available in "Blackout" black
Weight: 870 Grams w/BB
BB Shell: 68, 68E, 73, 73E, 83
Spindle Length: 113, 123
Arm Lengths: 165,170,175
Bolt Pattern: 4x104 BCD