Upper and lower adjustable angle: 60 degrees. Adjustable angle: Center distance of plus/minus 60 degrees: 110MM. Work with 11/8" steering tube.
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LKfjnhePF Headset Spacers 31.8mm Fork Headset Carbon Spacers MTB Bicycle Handlebar Stem Rise Up Adjust Washers 3K Glossy Fiber Steering DIY Accessories(G31.8 H81mm P9)
