Compatibility: The inner diameter of the stem spacers for road bikes measures 28.6mm, equivalent to a 1-1/8" headset spacer set. These spacers are suitable for use with 28.6mm front stem forks found on mountain bikes, BMX bikes, road bikes, and other similar models.
Notes: if you go for heavy duty off road ride, you should use aluminum spacers other than carbon spacers, durabale due to automatic cutting, smooth edge, fit most of the road bicycles
Package:5 PCS bike handlebar stem spacers in 2 sizes: 5mm /10mm,1 PCS headset top cap,1 PCS headset star nut,1 PCS bolt provide various combination to adjust height of handlebars to fit your riding style
Suitable of most road bikes,durable to use.Perfect to get a good fit on your bike.
Material: Bicycle headset spacers threadless are made of black/red/blue/gold anodized aluminum alloy material with smooth surface and exquisite workmanship, eco-friendly, sturdy and durable to use