Size : Bike Headset Spacer 1-1/8". 28.6mm while the external is 34mm, and total weight is about 27g.
6 Pcs Headset Spacers 1 1/8", Aluminium Alloy Headset Spacers for Bikes, 28.6mm MTB Road Bike Stem 2mm/3mm/5mm/3x10mm Black
6 Pcs Headset Spacers 1 1/8", Aluminium Alloy Headset Spacers for Bikes, 28.6mm
Quacc 6 PCS Headset Spacers 1 1/8" Aluminum Alloy Bike Headset Spacers for MTB BMX Road Bikes 2mm 3mm 5mm 10mm (Black)
GoHZQ 6 Pcs Headset Spacers 1 1/8", Aluminium Alloy Headset Spacers for Bikes,
GoHZQ 6 Pcs Headset Spacers 1 1/8", Aluminium Alloy Stem Spacers for Bikes
6 Pcs Headset Spacers 1 1/8", Aluminium Alloy Adjustable Spacer for Bikes, 28mm MTB & Road Bike Stem Spacers Set (2mm/2x5mm/3x10mm), Riser Spacer Set for Handlebar, Lightweight and Easy to Install
