Wolf Tooth Components
Wolf Tooth Premium EC Headsets - External Cup
SKU: EC34U-5MM-BLK
Free Shipping on orders over $50*
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Shipping
Shipping
*Free shipping applies to parts orders over $50 shipping to addresses within the contiguous U.S. (excludes HI, AK, APOs and US territories). Some exclusions apply.
International Orders
We can sell and ship some items internationally but certain brands or substances may be prohibited from shipping outside of U.S. or to certain territories.
We are unable to estimate local taxes and VAT and are not responsible for any of these charges or duties.
Package forwarders may be utilized at your discretion. We are not responsible for any damage that occurs after your item has been delivered to the shipping address. All shipments need to be inspected prior to being forwarded to secondary destinations.
Lead Times
We under promise and over deliver. Although many products will ship the same day or next day, our official policy is 2-4 business days of handling time including expedited orders (Next Day Air, etc.). If you need something in a rush please use a premium shipping service and contact us prior to placing your order for a more accurate ETA.
Shipping Restrictions
Certain items containing lithium batteries, compressed air or hazardous materials may only be shipped within the contiguous U.S. using ground delivery only.
Oversized items, including bikes, may not be available for expedited shipping. We will contact you should in the event that your selected shipping service is unavailable for your order.
Bike Builds
All bikes are built, checked and test ridden prior to boxing and shipping. This process averages 1-3 weeks depending on our backlog and the complexity of your build. Expedited builds are available for an additional fee, contact us for details.
Complete bikes are packed in our own specially designed bike boxes but do require some basic assembly. If you aren't confident in your mechanical abilities please have your local shop do the final assembly.
Only bikes/frames over $3000 are eligible for free shipping. There is a $150 charge on all bikes/frames under $3000.
Received a damaged item or bike?
We do our best to protect everything we ship but accidents do happen. Please keep all packaging and contact us within 24 hours of receiving your order so we can file a claim.
Details
Wolf Tooth headsets are machined in the USA with aircraft-grade 6061 aluminum. Our headsets have three levels of superior custom sealing to protect bearings from the elements and prolong the life of the headset. They are designed to be lightweight, strong, and durable. Available in a variety of colors. These EC headsets are for frames with external bearing cups, which places the bearing outside of the frame with these headsets. Premium Headsets with Enduro stainless steel bearings have a lifetime warranty.
Compatibility
- Stack height designation for EC headsets includes 10mm cup (see tech specs).
- Any frame that uses an external cup headset with a 34mm upper head tube. inner diameter and 34mm, 44mm, or 49mm lower head tube inner diameter
- Uppers and lowers sold separately.
- Enduro stainless steel sealed bearings included on both the upper and lower.
- Upper headsets ship with a star nut which can only be used on forks with steel or aluminum steerer tubes. For forks with carbon steerer tubes you will need a compression plug (sold separately). (Never use a star nut on a carbon steerer tube).
-
A crown race adapter (sold separately)will allow you to use forks with smaller 1-1/8" or 1-1/4" steerer tubes with a larger 1-1/2" bottom headset cup
- EC34 Lowers are not compatible with Surly 1-1/8" straight steerer forks
Upper assembly features:
- Ultralight Stem Cap With Integrated Spacer plus an aluminum bolt and a star nut.
- 5mm cover = 16mm total stack, 15mm cover = 25mm total stack, 25mm cover = 35mm total stack.
- O-ring seal prevents water intrusion around the steerer tube.
- Custom-molded upper lip seal provides additional protection for upper bearing.
Lower assembly features:
- Custom molded dual-lip seal on the crown race to protect lower bearing in the toughest conditions.
- 12.25mm stack.
- Service and additional parts available.
Recommendations
The Wolf Tooth crown race installation adapter will help avoid damaging the crown race seals.
Related Products
Tech Specs
Weight: EC44 lower • 45g | EC49 lower • 54g | EC34 lower • 37g | EC34 5mm upper • 64g | EC34 15mm Upper • 70g | EC34 25mm upper • 79g
Material: 6061 aluminum
Stem Cap Bolt Torque Spec: 2-3 Nm with light grease on threads only
Made in the USA
Specs
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