Wolf Tooth IS52 Premium Upper & Lower Headset for ENVE IN-Route System

Premium Headsets for Enve IN-Route System: Wolf Tooth Premium Internal IS52 Headsets were developed for frames using the ENVE IN-Route System of cable integration with an IS52 headset. It was made for cyclists who want a clean, aero cockpit that keeps cables and brake lines out of sight. Wolf Tooth headsets are machined with aircraft-grade 6061 aluminum at Wolf Tooth in Minnesota, USA.

Full Integration: This Internal headset helps reduce aerodynamic drag by hiding cables away from airflow, and presents a svelte profile with its ultra-low stack height and narrow, machined profile. Extremely lightweight at only 78 g, it sets the benchmark in performance for a fully integrated cockpit.

Slammed: The new Premium Internal Headset features an ultra-low 3.5 mm upper stack height for a smooth transition from cockpit to headset to frame.

Triple-Sealed Weatherproofing: Sealing against the elements is critical on fully integrated bikes, where a bearing replacement involves disassembly of the entire cockpit and a brake bleed.

Like all Wolf Tooth headsets, this new option features Wolf Tooth's 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 in Minnesota, USA: Wolf Tooth's new Premium Integrated Headset for Enve IN-Route System is covered by Wolf Tooth's Right to Repair program that offers replacement parts and installation guides. Wolf Tooth Premium Headsets carry a lifetime warranty.

Color Shop: Wolf Tooth's new Premium Integrated Headsets for the Enve IN-Route System are available in seven beautiful anodized colors that pair with Wolf Tooth's other Color Shop components.

Wolf Tooth Premium Internal Headsets for ENVE IN-Route System are designed and machined right here in Wolf Tooth's Minnesota headquarters with aircraft-grade 6061 aluminum. They are designed to have an ultra-low stack height, to be lightweight, and durable. Wolf Tooth's headsets have three levels of industry-leading custom sealing to protect bearings from the elements and prolong the life of the headset. Available in a variety of colors. Premium Headsets with Enduro stainless steel bearings carry a lifetime warranty on the bearings.

Features:

• Premium Enduro stainless steel bearings
• 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:
• Internal o-ring top cap seal prevents water intrusion around the steerer tube
• Custom-molded upper cup lip seal provides additional protection for the upper bearing
• Custom molded dual-lip seal on the crown race to protect lower bearing in the toughest conditions

Specifications:

• Material: 6061 Aluminum
• Dimensions:
• Total Stack Upper Headset: 3.5 mm
• Total Stack Lower Headset: 0 mm
• For Headtube Internal Diameter: 52 mm
• 52 mm 36x45 Upper And Lower Bearings
• Weights:
  • Upper Headset: 50 g
  • Lower Headset: 28 g
  • Complete Headset: 78 g

Compatibility:

• Designed for the ENVE IN-Route System and compatible with bikes that use an IS52 upper / lower headset and a 1 1/8" to 1.5" tapered steerer tube (FITS ONLY ENVE In-Route System)
• Use top cap and split spacers provided with ENVE stems and one-piece cockpits
• Use the compression plug that comes with your fork
• Sold as a complete upper and lower IS52 Headset
• Enduro stainless steel bearings included
• Two 0.5 mm spacers are included to dial in headset compression if necessary