Menu
Featuring some of the lowest stack height bearing cover options available, our premium stainless steel Hellbender bearing, 6061 T-6 Aluminum cups and covers, the Hellbender 70 Slam is a premium headset created for riders seeking to lower their handlebars as low as possible without compromising bearing longevity and proper preload.
Highlights:
Get 20% off when you buy our Road Package.
| Cups & Covers | 6061 T-6 Aluminum |
|---|---|
| Top Cover | Designed with the lowest stack height possible for both IS and ZS |
| Crown Race | Alloy Dual-Seal crown race provides excellent seal efficiency with low friction |
| Compression Ring | Carbon friendly captured compression ring |
| Bearings | Premium, sealed stainless-steel HELLBENDER bearings |
| Stack Height | ZeroStack (ZS) — 2mm top (vs 8mm top for normal ZS Hellbender) |
| Part #s | BAA2160K – ZS44 / ZS56 |
Yes, you will need a 52/30 crown race in addition to the rest of the headset assembly.
All of our bearings use 45* outside angles (that interface with frame or bearing cups) This is actually one of the only fairly reliable standards across the bike industry.
The Crux uses an IS42 upper headset and an IS49 lower headset. We only offer the upper IS42 since the IS49 uses a proprietary sized bearing onyl availale from specialized.
You can choose from several of our headset models in IS42 and we recommend the 110 Series since it has a Lifetime Guarantee (even on the bearings).
We use both 36°x45° and 45°x45° bearings so it depends on the headset size. All IS47 lower headsets will use a 45°x45° bearing. All other lower complete headsets use a 36°x45° bearing.
Ask a question
Your question will be answered by a store representative or other customers.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Thank you for the question!
Your question has been received and will be answered soon. Please do not submit the same question again.
Error
An error occurred when saving your question. Please report it to the website administrator. Additional information:
Add an answer
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Thank you for the answer!
Your answer has been received and will be published soon. Please do not submit the same answer again.
Error
An error occurred when saving your answer. Please report it to the website administrator. Additional information:
Verified Ownerthe best headset for short people like me. you can really lower the stack height to have more aggressive climbing position in XC bikes
Verified review - view original
Verified Owner
Verified OwnerNot sure what bike this is supposed to fit, but the spacing required from the top of the bearing to the top of the head tube is unlike any other I've seen, and where the "Slam" gets all of it's gains from - rather than from the design of the slam itself. So odd. All seals have been removed from the design. Recommend searching a competitor product if you're looking for a normally sealed 'slammed' headset for a standard headtube configuration.
Verified review - view original
Reviews
There are no reviews yet