Wolf Tooth
Wolf Tooth Premium EC44 Upper and Lower Aero Headset For Semi Internal Routing Black
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Wolf Tooth Premium EC44 Aero Headset for Semi-Internal Routing
Built for riders who prefer the flexibility of semi-internal (under the stem) routing, our Headsets for Semi-Internal Routing were developed for frames using an EC44 headset. These headsets are equipped with a custom seal at the cable entry ports that eliminates contamination from moisture and debris, maximizing bearing life.
Machined from aircraft-grade 6061 aluminum at Wolf Tooth in Minnesota, USA.
Semi-Integration
This Internal headset helps reduce aerodynamic drag by hiding cables away from airflow, while still preserving a more user friendly experience when building up and traveling with your bike. It presents a svelte profile with its ultra-low stack height and narrow, machined profile. Extremely lightweight at only 120g, it sets the benchmark in performance for a semi-integrated cockpits.
Slammed.
These headsets feature an ultra-low 20.1mm upper stack height for a smooth transition from cockpit to headset to frame.
Triple-Sealed Weatherproofing
Sealing against the elements is critical on fully and semi-integrated bikes, where a bearing replacement involves disassembly of the cockpit and a brake bleed.
Like all Wolf Tooth headsets, this new option features our best-in-class triple-sealed system to protect bearings from the elements. It also includes Enduro stainless steel bearings that use the largest possible ball size and are filled with high-pressure waterproof lubricant.
Machined In-House
Machined and assembled right here in Minnesota, USA. Our new Premium EC44 Aero Headsets for Semi-Internal Routing are covered by our Right to Repair program that offers individual replacement parts and service guides.
Wolf Tooth Premium Headsets carry a lifetime warranty.
Features
- Premium stainless steel Enduro bearings for ultimate corrosion protection.
- Six cable ports (two hydraulic brake lines + four mechanical cable lines).
- Available in seven Wolf Tooth anodized colors to match other Wolf Tooth components.
- Designed with the Wolf Tooth triple-sealed system present on all other Wolf Tooth headsets:
- Custom-molded captive rubber seal at the cable entry ports that stops any water or debris from getting in with the brake hoses or shift cables.
- Custom lip seal on the outside of the headset cap interfaces with the frame or EC44 cup to stop any water or debris from getting into upper the bearing.
- Custom overmolded dual-lip crown race seal interfaces with frame to stop any water or debris from getting into the lower bearing.
Specifications
- Material: 6061 Aluminum
- Dimensions:
- Total Stack Upper Headset - 20.1mm
- Total Stack Lower Headset - 12.25mm
- For Headtube Internal Diameter - 44mm
- Cup External Diameter - 56.5mm
- 52mm 36x45 Upper And Lower Bearings
- Weights:
- Upper Headset: 73 g
- Lower Headset: 47 g
Compatibility
- Designed for semi-internal cable routing to allow the use of standard 1-1/8" stems and headset spacers with bikes that use an EC44 upper / lower headset and a 1-1/8” to 1.5” tapered steerer tube.
- Only compatible with frames designed for through-the-headset routing.
- Use the compression plug that comes with your fork.
- Sold as a complete upper and lower EC44 Headset.
- Enduro stainless steel bearings included.
- Includes 2x 0.3mm plastic shims to help dial in headset compression if necessary.