Zipp Speed Weaponry Service Course SL Handlebar Material: proprietory ZTL-71 alloyDiameter: 31.8 mmWidth: 40 cm, 42 cm, 44 cm, 46 cmDrop: (short & shallow) [84.5 mm ], (traditional) [87.5 mm ]Reach: (short & shallow) 128 mm, (traditional) 130 mmSweep: Compatible Components: clip-on compatibleWeight: [280 g ]Recommended Use: road racingManufacturer Warranty: 2 years