Head Part OR8 Ahead Fusion Expndr 1-1/8x50 Flat Top Bk 24x24 Mushroom riveted pins for the

Mushroom riveted pins for the highest pin power and allows shifting under heavy loads

The liner is removable

40- and 110-Series headsets and backwards compatible with S and XX Series

and any other sliding or pivoting parts that require a super-slick yet mildly tacky grease

Head Part OR8 Ahead Fusion Expndr 1-1/8x50 Flat Top Bk 24x24 Mushroom riveted pins for the3 piece expander design provides a secure fit within carbon steerer tubes Low profile alloy top cap included 22 25mm range of expansion 50mm height reinforces carbon steerer tube beneath the stem New design evenly distributes headset compression forces Lightweight AL6061 alloy construction Stainless steel bolt