EC37/EC37 Headset

$179.00

The White Industries EC37 | EC37 Threadless Headset combines precision machining, premium Enduro stainless steel bearings, and a split crown race for smooth performance and easy service. Built in Petaluma, California, it’s designed to deliver years of dependable riding.

SKU: ec37ec37
Category:

Description

The White Industries EC37 | EC37 Threadless Headset is a precision-machined headset designed to deliver smooth steering, lasting durability, and timeless style. We machine, polish, engrave, and inspect every headset in our Petaluma, California facility. As a result, the EC37 | EC37 offers the premium craftsmanship and long-lasting performance riders have come to expect from White Industries.

For more than 30 years, White Industries has designed components that prioritize simplicity, reliability, and serviceability. The EC37 | EC37 Headset continues that tradition with durable materials, precision machining, and thoughtful engineering that make installation and maintenance easy.

Every headset features premium Enduro stainless steel angular contact bearings for smooth, dependable steering in all riding conditions. When it’s time for service, the bearings are easy to replace, helping extend the life of your headset for years to come.

The EC37 | EC37 also features our split crown race design, allowing for quick installation and removal without specialized tools. In addition, every headset receives precision machine-engraved logos—not laser etched—for a clean, refined finish that reflects the attention to detail found in every White Industries component.

The EC37 | EC37 Headset is designed for frames with 37mm upper and lower head tubes and can accommodate both straight and tapered fork steerers when paired with the appropriate crown race. Because headset standards vary between manufacturers, we recommend confirming your bike’s SHIS (Standardized Headset Identification System)specifications before ordering to ensure the correct fit.

Whether you’re building a new bike or upgrading an existing frame, the EC37 | EC37 Threadless Headset delivers premium American-made performance built to last.

Features

  • Precision CNC-machined in Petaluma, California
  • Designed for EC37 | EC37 headset applications
  • Compatible with straight and tapered fork steerers using the appropriate crown race
  • Premium Enduro stainless steel angular contact bearings
  • Replaceable bearings for long-term serviceability
  • Split crown race for easy installation and removal
  • Precision machine-engraved White Industries logos
  • Durable, easy-to-service design
  • Smooth, reliable steering performance
  • Made in the USA

Technical Documents

Looking for more detailed technical info? Visit our Technical Documents page here.

Specs

  • 6061-T6 aluminum
  • Machine engraved logos
  • Easily replaceable Enduro stainless steel angular contact bearings
  • “Split” crown race for tool-free installation and removal
  • Stack height
    • Upper: 15mm
    • Lower: 12mm
  • Weight

Compatibility

  • A perfect match to our really sweet matching headset spacers, available separately
  • The EC37│EC37 headset is designed to fit frames with straight 37mm head tubes and two types of fork steerers (see below)
  • The “EC” stands for “External Cup” meaning the section of the cup that houses the bearing sits outside of the frame’s head tube.  The “37” stands for “skirt” that presses into the head tube.
  • SHIS specification
    • Upper: EC37/28.6
    • Lower: EC37/30 or EC37/33
      • Can accommodate two types of fork steerers:
        • “Straight 1-⅛” with a 30mm crown race seat
        • “Tapered 1-¼” with a 33mm crown race seat
  • Not compatible with carbon forks that have integrated crown race seats
  • SHIS definitions on the Park Tools website: here
  • Frame/Fork specs:

    Frame upper head tube inside diameter  

    33.9mm to 33.95mm

    Frame lower head tube inside diameter

    43.95mm to 44mm

    Fork steerer diameter top section 

    28.45mm to 28.6mm

    Crown race seat diameter for “straight 1-⅛”

    30.015mm to 30.075mm

    Crown race seat diameter for “tapered 1-¼”

    33.03mm to 30.09mm

     

     

  •  

Bearings

Headset Model  

Upper Bearing (inner/outer angle) Lower Bearing (inner/outer angle)

Lower Fork Race Compatibility

EC37│EC47

ACB3645SS  (36/45) ACB45/45125LSS (45/45)  

1-⅛” (30mm) 

1-¼” (33mm)

What's In The Box

  • One headset which includes:
    • Top cap bolt
    • Top cap
    • Bearing cover
    • Upper bearing compression ring
    • Upper bearing
    • Upper cup
    • Lower cup
    • Lower bearing
    • Crown race
  • Headsets no longer include Star Nuts due to the Earth’s star nut overpopulation crisis. If you need one, they are available separately here.

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