Description If the lower part of your head tube has an inner diameter of 56mm you can generally use this headset. ⦁ Lower zs56 headset bearing pressed into an alloy bearing cup ⦁ Crown race with seal for a 1.5″ steering tube ⦁ Press-fit diameter (ID): 56 mm ⦁ Outer diameter (OD): 63 mm ⦁ Crown race (SD): 1.5″ / 39.8 mm ⦁ Stack height (H): 2.0 mm ⦁ Press-fit depth (D): 10 mm
