ABOUT OMNI Racer OMNI Racer provides some of the World's Lightest cycling components. OMNI Racer is small young U.S. company with a passion for cycling and dedicated to bringing cyclists innovative, lightweight, and high quality cycling components to riders that seek the lightest and best quality products. OMNI Racer's products are engineered to optimize the best structural properties of carbon fiber and high strength alloys, creating components at extremely low weights. NEEDVILLE, TEXAS USA NOW WARANTEED for LIFE 1" OMNI Racer World's Lightest RACE-Lite Carbon Fiber Headset Spacer Set Beatiful Lightweight Design Fits 1" (25.4mm) fork tubes Full 3K carbon fiber PRODUCT FEATURES: Fits 1" forks with threadless, integrated, & internal headsets Material: Full 3K carbon fiber Glossy or Matte finish NO logos for nice clean appearance Inside Diameter: 1" (25.6mm) Outside Diameter: 31.65mm WEIGHTS: (Grams) 2mm: 1.03mm: 1.35mm: 2.110mm: 4.515mm: 6.720mm: 9.0