The Top Cap threads into your steerer (Tap Kit sold separately) and tightens with a standard cassette lockring tool

Bearing Style: Stainless steel sealed bearings with Gutter Seal Technology

T10 - fits a lot of hydraulic plugs

Our bearings are always engineered with deepest groove races possible to accommodate the largest balls and feature dual-lip seals that ride in a micro-groove creating a full labyrinth to provide superior protection against the elements

Tap with a hammer - go slow to ensure it stays straight

Wolf Tooth Crown Race - 52-40 - For 1.5 Inch Steerers Exclusive The Top Cap threads intoThe crown race for the Wolf Tooth Components headset. Using a custom moulded dual lip seal on the crown race to protect lower bearing in the toughest conditions.