
DESCRIPTION
These lower headset cup extenders allow you to adjust the geometry of your bike frame by increasing the effective fork length by 10mm. They allow you to do things like use a rigid fork on a suspension-corrected frame or use a fork with a shorter axle-to-crown height rather than what the frame was designed to use. They can also be used to increase the bottom bracket height and lower the headtube angle.
Wolf Tooth headsets are machined here in our Minnesota shop with aircraft-grade 6061 aluminum. They are designed to be lightweight, strong, and durable. Premium Headsets with Enduro stainless steel bearings have a lifetime warranty.
Our headsets have three levels of industry-leading custom sealing to protect bearings from the elements and prolong the life of the headset. These EC headsets are for frames with external bearing cups, which places the bearing outside of the frame.
COMPATIBILITY
- Any frame that uses an external cup headset with a 49mm head tube inner diameter.
- Uppers and lowers sold separately.
- Enduro stainless steel sealed bearing included.

FEATURES
- Custom molded dual-lip seal on the crown race to protect lower bearing in the toughest conditions.
- Service and additional parts available.
SPECIFICATIONS
Weight: 68g
Material: 6061-T6 aluminum
Made in the USA
The Story
Wolf Tooth was founded to design and manufacture precision cycling products that emphasize function, performance, and reliability to meet the needs of our fellow racers and riders.
We are a group of cyclists in Minneapolis, Minnesota that spend a lot of time talking about bike components. Like most detail-obsessed riders, we're always looking for new products that could make our bikes lighter, faster, more versatile, or more reliable. We pride ourselves on delivering premium products of the highest quality.
PLU: 77333
SHIPPING & DELIVERY
Free Shipping
We offer free shipping on orders over $99 NZD*. Orders under this threshold incur a flat rate of $7.20**
*Excludes large or bulky items, which are charged between $25.00 and $100.00, depending on size, weight, and delivery location. Shipping is calculated at checkout.
**Rural delivery surcharge: An additional $6.00 is applied to rural addresses.
Click & Collect
Prefer to pick up your order? Select Click & Collect at checkout and collect from any Pushbikes store. Note: Some items may take 1 to 3 days to transfer between stores and up to 12 days for certain brands if the item is coming from our supplier. We'll notify you when your order is ready.
Delivery Time Frames
In-Stock Items:
For items in stock at our stores, expect delivery within 2 to 3 business days of order confirmation. Orders placed after 3pm will be processed the following business day. Please allow an additional 2 days for rural delivery.
From Supplier
Items shipped directly from our suppliers are usually dispatched within 5–7 business days. Some may take up to 12 business days, depending on the supplier. Estimated delivery times and stock location are shown for each product page above the add to cart button. Rural deliveries may take an extra 2 days.
Tracking Information
You'll receive a tracking number by email as soon as your order has been dispatched. If you haven’t received tracking details within your expected delivery window, please contact us to confirm.
Shipping Bikes
Bikes cannot be shipped due to brand warranty and dealer policies. All bikes, including electric bikes, must be collected in store fully assembled. If you're unsure, feel free to contact us before ordering.
Processing of bikes for 'click & collect' can take up to 7 days if they need to be shipped from our suppliers or assembled in-store.
Returns and Warranty
For information about returning a product or submitting a warranty claim, please see our Returns and Warranty Policy here.
Questions
If you're unsure about shipping rates or have any questions, get in touch with us with any questions.
REVIEWS & QUESTIONS
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