Wolf Tooth 1 ° GeoShift Performance Angle Headset
Product Details
The Wolf Tooth GeoShift Performance Angle Headset is a precision upgrade for riders seeking to fine-tune their bike’s handling characteristics. Whether you're chasing enduro speed or XC agility, this headset allows you to alter your head tube angle by ±1°, giving you the freedom to slacken your geometry for greater stability on descents or steepen it for quicker handling and sharper climbing traction.
Unlike spherical angle headsets that can introduce creaking and unwanted movement, the GeoShift headset uses an angled bearing interface that perfectly aligns with the steerer tube to eliminate play and noise. Each headset is CNC-machined in the USA from 6061 aircraft-grade aluminum, delivering the strength and precision serious riders expect. It comes equipped with Enduro black oxide-coated steel bearings, ensuring long-lasting performance in demanding conditions.
Designed for frames using ZS44 upper and ZS56 lower headset cups, this version includes everything needed for installation—upper and lower cups, bearings, crown race, star nut, shims, bolt, and a stem cap with an integrated 5mm spacer. A star nut is included for use with steel or aluminum steerer tubes; riders with carbon steerers will need a separate compression plug.
Key Features
- ±1° Head Angle Adjustment – Fine-tune your bike’s geometry for either slacker descending or quicker handling
- Angled Bearing Interface – Eliminates creaking and misalignment common in spherical angle headsets
- Enduro Bearings Included – Upper and lower black oxide-coated chromium steel bearings for durability
- Complete Kit – Includes everything needed for installation, including star nut and an integrated spacer top cap
- CNC-Machined in the USA – Lightweight and strong 6061 aluminum construction for performance and longevity
| Specification | Detail |
|---|---|
| Weight | 92g (ZS44/28.6 Upper, ZS56/40 Lower) | 107g (ZS44/28.6 Upper x2, EC49/40 Lower) |
| Material | 6061 aluminum |
| Bevel Angle | 36 x 45 degrees |
| Includes | Upper and lower cups, bearings, crown race, star nut, three shims, stem cap with 5mm integrated spacer and bolt |
| Stem Cap Bolt Torque Spec | 2–3 Nm (with light grease on threads only) |
| Made in | USA |
| Model | Upper Stack Height (mm) | Lower Stack | Total Stack Height (mm) | Lower Insertion Depth (mm) | Head Tube Upper ID (mm) | Head Tube Lower ID (mm) | Head Tube Length (mm) |
|---|---|---|---|---|---|---|---|
| EC44-EC44 SHORT | 15.3 | 12.5 | 27.8 | 12.0 | 43.95 - 44.00 | 43.95 - 44.00 | 90 - 114 |
| EC44-EC44 LONG | 15.3 | 12.5 | 27.8 | 12.0 | 43.95 - 44.00 | 43.95 - 44.00 | 115 - 140 |
| ZS44-EC49 SHORT | 6.5 | 12.6 | 19.1 | 9.0 | 43.95 - 44.00 | 49.57 - 49.61 | 90 - 114 |
| ZS44-EC49 LONG | 6.5 | 12.6 | 19.1 | 9.0 | 43.95 - 44.00 | 49.57 - 49.61 | 115 - 140 |
| ZS44-ZS56 SHORT | 6.5 | 4.4 | 10.9 | 9.0 | 43.95 - 44.00 | 55.90 - 55.95 | 90 - 114 |
| ZS44-ZS56 LONG | 6.5 | 4.4 | 10.9 | 9.0 | 43.95 - 44.00 | 55.90 - 55.95 | 115 - 140 |