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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.
Highlights:
Need help choosing the right headset? Read this: Everything You Need to Know About Headsets
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.
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.
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
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.
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.
| Cups and Covers | 7075 T-6 Aluminum, Internally contoured and relieved to minimize weight and maximize strength. |
|---|---|
| Covers | 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 |
| Bearings | Premium, sealed stainless-steel HELLBENDER bearings EC34 will take a 41mm 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® | Interlok® spacer compatible |
| Warranty | 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 |
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.
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. https://www.tradeinn.com/bikeinn/en/specialized-crux-integrated-headset/138672688/p
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.
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.
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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.
Got more questions? Want to know what size bearing you need? Check the Headset FAQ here.
Verified OwnerLighter. Smoother. Stronger. Lifetime guarantee. What else do you want?
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Verified Owner
