Bike Bicycle Full Carbon Headset Spacer Stem Spacer 5 Pcs 1-1/8" 20 15 10 5 3mm for MTB Road Bike Santa Cruz Haro Mongoose GT Giant Trek Cannondale Scott Yeti Schwinn Bikes (Black);

Full Carbon Fiber Spacer 1-1/8" (28.6mm) - 5 pcs 3mm--5mm--10mm---15mm---20mm =5 pcs easy to adjust the stem.