Zipp Service Course SL-OS Stem

±6° stem that fits 1-1/4 inch steerer tubes Lightweight and stiff with a 1.73g/nm stiffness to weight ratio for better control and responsiveness. For bikes with 1-1/8 inch steerer tubes, included shims allow stem to be adjusted for ±4° ±6° or ±8° angles. SRAM Model ID: ST-SC-SL-B2 Attributes Face Plate Bolts 4 Handlebar Diameter 31.8mm Primary Color Black Stack Height 41 Steerer Tube 1-1/4'' Stem Angle ±4/6/8° Stem Material Aluminum Stem Weight 140g (100mm)