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Compatibility
- Upper headsets ship with a star nut which can only be used on forks with steel or aluminum steerer tubes. For forks with carbon steerer tubes you will need a compression plug (sold separately; never use a star nut on a carbon steerer tube)
- Consult measurement guide determine which headset will fit your bike.
Upper assembly features:
- Ultralight Stem Cap With Integrated Spacer plus an aluminum bolt and a star nut
- 5mm top cover = 6mm total stack
- O-ring seal prevents water intrusion around the steerer tube
- Custom-molded upper lip seal provides additional protection for upper bearing
- Optional shim washers if needed
Lower assembly features:
- Custom-molded dual-lip seal on the crown race to protect lower bearing in the toughest weather and trail conditions
- Service and additional parts available
Recommendations
The Wolf Tooth crown race installation adapter will help avoid damaging the crown race seals.
Tech Specs
Weight: ZS44/28.6 Upper, ZS56/40 Lower • 92g | ZS44/28.6 Upper, EC44/40 Lower • 105g | ZS44/28.6 Upper, EC49/40 Lower • 107g
Material: 6061 aluminum
Includes: Upper and lower cups, bearings, crown race, star nut, three shims, stem cap with 5mm integrated spacer and bolt (weight listed does not include star nut, shims, or stem cap)
Made in the USA
Keith
Reviewed in the United States on March 14, 2022
this was a great upgrade . just enough of a angle change to notice a more stable feel downhill. if your going to replace headset bearing anyway, go this route.
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