Chromag headset spacer kitchromags headset spacer kit is made of anodised aluminium and comes in a pack of three spacers 1 x 10mm and 2 x 5mm so why not add some extra bling to your bike with these headset spacers from chromag featuresmaterial 6061 alloycnc machined2 x 5mm and 1 x 10mm spacerbuy chromag components from chain reaction cycles the worlds largest online bike store