ITEM NAME:Durable Bike Bicycle Seatpost Shim Tube Adapter Accessories img *{margin:0;padding:0;.Set of 2 Pieces Bicycle Stem Fork Shim. Stem fork tube adapter coverts 28.6mm to 31.8mm. Use this handlebar sleeve adapter ring, can install on 31.8mm bike stem. Made of aluminium alloy material,lightweight and durable.
