Wisecracker Aluminum Mountain Bike Stem Spacer Black Threadless 31.8 mm Clamp
Wisecracker Aluminum Mountain Bike Stem Stem Spacer Bottle Opener is designed specifically for mountain bikes, with a 31.8mm clamp diameter and a 1 1/8 inch steerer tube diameter. Made from durable aluminum, this sleek black stem spacer is threadless for easy installation and maintenance.