The GeoShift Performance Angle headset features a design where the bearings are positioned at an angle aligned with the fork steerer tube. Wolf Tooth headsets are made in the USA from lightweight, strong, and durable 6061 aluminum. Our Performance headset includes a chromoly bearing coated with Enduro black oxide, a one-year warranty, and a three-stage seal to protect the bearings from the elements and extend the headset's lifespan.

Compatibility: The upper bearing comes with a star nut that can only be used with forks that have steel or aluminum steerer tubes. For forks with carbon steerer tubes, you will need a compression plug (sold separately; never use a star nut for a carbon steerer tube). Please refer closely to the manual to determine which headset is suitable for your bike.

Features of the upper bearing cup: Ultralight cap with integrated spacer, along with an aluminum screw and a star nut. 5 mm high upper cover = 6 mm total height. The O-ring seal prevents water ingress around the steerer tube. The specially shaped upper seal provides additional protection for the bearing. Optional washers available if needed.

Features of the lower bearing cup: Specially shaped double-lip seal on the cone to protect the lower bearing in the harshest weather conditions. Service and additional parts available.

Specifications: Weight: ZS44/28.6 Upper, ZS56/40 Lower • 92 g | ZS44/28.6 Upper, EC44/40 Lower • 105 g | ZS44/28.6 Upper, EC49/40 Lower • 107 g. Material: 6061 aluminum. Package includes: upper and lower cups, bearings, cone, star nut, three washers, and a stem cap with a 5 mm integrated spacer and screw (the stated weight does not include the star nut, washers, and stem cap). Made in the USA.