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The Absolute Best

Well over a decade ago, we set out to make the best premium headset on the market. With our 110 Series, we did just that, utilizing optimal materials, the most effective seals and the best aesthetics.


  • 100% Lifetime Guarantee
  • Hellbender stainless steel bearings
  • Voted #1 Headset to Buy – 2022 Vital MTB Audience Survey

Need help choosing the right headset? Read this: Everything You Need to Know About Headsets

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100% Lifetime Guarantee

We invented the modern headset in 1992 with the Aheadset and the 110 series is a continuation of that legacy of precision, craftsmanship and performance.

We know the 110 headsets are the best in the world, and we want to make sure that they have the best guarantee in the world.

Cane Creek headset bearing and headset parts

Hellbender Bearings

The Hellbender bearings are built to live in the most extreme conditions, keeping you riding smoothly through rain, mud, grit or whatever the road and trail throws at you. Using Stainless Steel bearings and advanced sealing elements.

bicycle headset spacers from cane creek

Interlok® Spacer Compatible

Our patented Interlok spacer design provides solid interface between the top cover and spacer stack, meaning they “nest” together and into the top of the bearing cover, which helps minimize shifting under load while riding; and shave 25% in weight off a standard alloy spacer stack. Spacers sold separately

110 Headset

The Absolute Best

The 110-Series offers the widest array of configurations available in a premium headset. With over 26 straight and tapered combinations, whatever your headset requirement, we have a premium solution for you, backed by our lifetime guarantee and superior customer service. 

Vital MTB Headset Award

Cane Creek Headsets

A Legacy of Innovation

In 1992, we brought the Aheadset®, the original threadless headset, to market – kicking off a major change in the way bicycle frames and forks would be developed going forward.

The original design of that revolutionary headset is still found in almost all bikes on the market today.

Additional information

Cups and Covers

7075 T-6 Aluminum, Internally contoured and relieved to minimize weight and maximize strength.


Low-friction upper bearing seal completely seals cup from contaminants and is fully captured by the top cover with no loose parts

Crown Race

Dual-Seal crown race provides excellent seal efficiency with low friction


Premium, sealed stainless-steel HELLBENDER bearings

EC34 will take a 41mm bearing
ZS44 will take a 41mm bearing
ZS49 will take a 41mm bearing
EC44/40 will take a 52mm bearing
EC44/33 will take a 47mm bearing
EC49 will take a 52mm bearing
ZS56 will take a 52mm bearing
IS41 will take a 41mm bearing
IS42 will take a 42mm bearing
IS52 will take a 52mm bearing

All complete Cane Creek headset assemblies (top or bottom) will use a 36×45 degree contact angle bearing, with the exception of our IS47/33 and EC44/33 headset assemblies. IS47/33 and EC44/33 will use a 45×45 degree contact angle bearing.


Interlok® spacer compatible


100% Lifetime Guarantee – Including bearings

Stack Heights

External Cup (EC) — 16mm top, 12mm bottom, ZeroStack (ZS) — 8mm or 15mm top, 4mm bottom, Integrated (IS) — 9mm or 15mm top, 1mm bottom

Q & A

Hi! I need for my Specialized Diverge Comp Carbon (2020) a new bearing. The original bearing is 40x52x7 mm. Does your bearing from the 110 series fit? Kind regards, Lars Lars asked on June 6, 2023

Yes, our Helllbender stainless steel bearing, Part #BAA1055 is a 52mm outside diamater (OD) and 40mm inside diameter (ID) with a 7mm height.

You will also want to verify that the contact angles on your bearing are 36°x45° since the BAA1055 bearing uses these contact angles.

If your bearing uses 45°x45° contact angles this is our part # BAA1161 for the Zinc coated steel Zn40 bearing in the same size you need.

I couldn't not find which they used on your Diverge but often the bearing has this information etched into along with the bearing OD and ID. You can also contact a Specialized Dealer or Specialized directly and they may have this information.

Ben Rea answered on June 8, 2023 store manager
(0) (0)
I have a 2022 specalized crux (new design) what headset would work with the lowest stack height? Ian McDonald asked on May 24, 2023

We were unable to locate the Crux's headset size on Specialized's website but I found the headset listed in the owner's manual, on an aftermarket site and it appears the new Crux is using a 49mm bearing for the lower head tube.

We do not offer this size, and to my knowledge, Specialized is the only brand using this 49mm lower sizing so you will need to contact Specialized, or a Specialized Dealer for a replacement lower headset.

For the upper headset, I could not find this information but Specialized has used IS42 on all of their road and gravel frames and this is likely the size you need for the upper headset. We offer this in our super low stack Hellbender70 SLAM - Part # BAA2165K.

Ben Rea answered on May 24, 2023 store manager
(1) (0)
Hey there! Will any of your crown races fit as a replacement for this one?,-ec49,-zs55,-zs56--is52- Thanx in advance! Denys asked on May 1, 2023

Yes! You need our 52/40 crown race to pair with these Acros headsets if using a 1.125" degrees to 1.5" tapered fork. Part # BAA0010s.

Make sure the bearings in your Acros headset are 36°x45° to ensure correct fit.

Ben Rea answered on May 16, 2023 store manager
(0) (0)

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More Details

With the flexibility to purchase complete assemblies or separate Tops and Bottoms, tops are available in either short (9mm) or tall (15mm) stack height bearing covers, the 110-Series offers a premium solution for nearly all straight and tapered configurations on the market today.

From Integrated (IS) Tops to External Cup (EC) Conversion Bottoms and everything in between, you can mix and match your headset purchase to best meet your needs.

Technical Documents

Got more questions? Want to know what size bearing you need? Check the Headset FAQ here.

Related Reviews

Based on 2 reviews
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Matt D.
Verified OwnerVerified Owner

Lighter. Smoother. Stronger. Lifetime guarantee. What else do you want?

Verified reviewVerified review - view original

2 months ago
Verified OwnerVerified Owner

Just works.

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2 months ago

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Reed Mann

Design Engineer
Name: Reed Mann
Position: Design Engineer
Year started: 2022
Best part of being a part of the Cane Creek family:  It’s very refreshing to work for a small, tight-knit company where we all share the same passions and to develop new products that make cycling better for everyone.
What you’ll find me doing on the weekends: Obviously riding bikes, but also wrenching on bikes or cars, exploring the mountains, and watching F1 races.
How I got here (at Cane Creek): Feeling pretty unfulfilled with a corporate engineering job, I happened to see that Cane Creek was hiring. I jumped at the opportunity to get my hands dirty working on the latest bike tech and was fortunate enough to be offered the position.