Information
Product Details
Stylish, durable, and easily serviceable. Those were the goals when designing our headsets. We machine engrave our logos for a classy look, use durable and easily replaceable Enduro stainless steel angular contact bearings, and use a “split” crown race design that you can install and remove by hand.
The EC34|EC34 style is often referred to simply as an “1-⅛” headset which, most of the time, is enough of a description to get you the correct headset. But nowadays with all the different headset standards available we needed to get specific so check the SHIS specs below. SHIS? Yep, that’s the “Standardized Headset Identification System” used to verify compatibility.
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
Bearings
|
Headset Model |
Upper Bearing (inner/outer angle) | Lower Bearing
(inner/outer angle) |
Lower Fork Race Compatibility |
|
EC34│EC34 |
ACB3645SS 36/45 | ACB3645SS 36/45 |
1-⅛” (30mm) |
Compatibility
- A perfect match to our really sweet matching headset spacers, available separately
- The EC34│EC34 headset is designed to fit frames with straight 34mm/34mm head tubes and straight 1-⅛” (28.6mm) fork steerers
- The “EC” stands for “External Cup” meaning the section of the cup that houses the bearing sits outside of the frame’s head tube and the “34” stands for the 34mm “skirt” that presses into the frame.
- SHIS specification
- Upper: EC34/28.6
- Lower: EC34/30
- 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 | 33.9mm to 33.95mm |
| Fork steerer diameter top section | 28.45mm to 28.6mm |
| Crown race seat diameter for
“straight 1-⅛” |
30.015mm to 30.075mm |
- Compatible with Ritchey carbon 1-1/8″ steerer forks with integrated crown races (not tapered steerer forks)
- Must call to purchase additional bearing part #ACB45451125TSS which replaces the stock bearing and crown race
- WCS road fork SKU 34356117005
- WCS road fork SKU 34356117006
- WCS Adventure Gravel fork SKU 34556117012
- WCS Gravel Cross fork SKU 34556117010
- Must call to purchase additional bearing part #ACB45451125TSS which replaces the stock bearing and crown race
- Not compatible with other carbon forks with integrated crown races
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.
FAQ’s
- Will this headset fit my bike?
- You will need to do some homework and get the SHIS specs of your frame and fork which those manufacturers will have. See those definitions here. Also see the “Compatibility” section on this page. Simply telling us what model bike you have may not be enough info to go on. Help us help you and get the specs!
