HDS MY13 Specialized Roubaix SL4 Sw/Pro/Expert Headset w/10&15mm Carbon Spacers&All Sizes Of Lower Bearings

Complete integrated headset for Roubaix SL4 bikes with all sizes of lower headset bearings.
1-1/8" Upper Bearing: 41.8mm OD x 30.5mm ID x 8mm Thick (45x45 degree).
49/52cm Frame Lower Bearing: 1-1/8" - 41.8mm OD x 30.50mm ID x 8mm Thick (45x45 degree).
54/56cm Frame Lower Bearing: 1-1/4" - 47mm OD x 34mm ID x 7mm Thick (45x45 degree).
58/61cm Frame Lower Bearing: 1-3/8" - 49mm OD x 37mm ID x 7mm Thick (45x45 degree).
48mm OD / 10mm tall carbon headset transition cover.
48mm OD / 15mm tall carbon headset transition cover.
Split alloy compression ring.
5mm carbon headset spacer (2 pcs.)
10mm carbon headset spacer (1 pcs.)