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Wolf Tooth Premium Internal EC44 Headsets were developed for frames using the ENVE IN-Route System of cable integration with a 44mm head tube.
Wolf Tooth Premium Internal EC44 Headsets were developed for frames using the ENVE IN-Route System of cable integration with a 44mm head tube.
Wolf Tooth

Wolf Tooth Premium IS52 Upper/Lower Integrated Headset for ENVE In-Route System Set in Red

£195.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

RETURNS

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Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.



Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:
Gift cards
Downloadable software products
Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted: (if applicable)

Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened.
Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
Any item that is returned more than 30 days after delivery
Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at sales@activesport.co.uk.

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at sales@activesport.co.uk and send your item to: 115 Spring Gardens, Buxton, SK17 6BX, United Kingdom.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping

To return your product, you should mail your product to: 115 Spring Gardens, Buxton, SK17 6BX, United Kingdom.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Wolf Tooth Premium IS52 Upper/Lower Integrated Headset for ENVE In-Route System Set in Red

Season:2025

Brand:Wolf Tooth

Code:WTIS52ULIRRED

Wolf Tooth Premium Internal EC44 Headsets were developed for frames using the ENVE IN-Route System of cable integration with a 44mm head tube.

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.

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 116g, it sets the benchmark in performance for a fully integrated cockpit.

The new Premium Internal Headset features an ultra-low 15.8mm upper stack height for a smooth transition from cockpit to headset to frame. This is the shortest stack height of any internal EC headset on the market.

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 our 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.

Our new Premium Integrated Headset for Enve IN-Route System is covered by our Right to Repair program that offers replacement parts and installation guides. Wolf Tooth Premium Headsets carry a lifetime warranty.

Our new Premium Integrated Headsets for the Enve IN-Route System are available in seven beautiful anodized colors that pair with our other Color Shop components.

Features:

  • Material: 6061 Aluminum
  • Total Stack Upper Headset - 15.8mm
  • Total Stack Lower Headset - 12.25mm
  • For Headtube Internal Diameter - 44mm
  • Cup External Diameter - 56.5mm
  • Upper Headset - 69g
  • Lower Headset - 47g
  • Complete Headset - 116g
  • 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.
  • Made in theUSA
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