Adapt Size: The size of the bike stem adapter is 25.4-31.8 mm. If your handlebar diameter is 25.4 mm and stem diameter is 31.8 mm, then you can use a "25.4 to 31.8 mm" handlebar shim as a conversion
Good Quality: This bicycle handlebar spacer is forged from high-strength aluminum alloy for high strength and corrosion resistance. It's not easy to rust or fade and sturdy
Function: This reducer allows you to use a smaller diameter standard size handlebar in an oversized stem. Bicycle handle gasket reducer converts 25.4 mm to 31.8 mm rod hole adapter
Styling: CNC machining. Using CNC cutting, the surface is flat and beautiful, and the edges are round and smooth. The surface is anodized and brightly colored, making your bike cooler and more stylish
Special Design: This bike clamp spacer adopts a wavy design on the surface not only will not damage the handlebar and stem, but also increase the friction of the product. It can be better anti-skid and improve riding safety