Get free shipping, on most items, with your $50 purchase today! Same day shipping on most orders if placed by 3pm PST.
This offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and some exclusions apply.
Some large and/or heavy items are subject to additional oversize charges that are separate from standard shipping costs.
Bike Build Process
All bikes are built, tested, tuned, and ready to ride upon shipment. The bike build process typically takes 2-3 days to complete depending on the bike model and the complexity of the build.
Orders for in-stock items placed by 3PM PST usually ship on the same day. Orders that include special-order or backordered items may be subject to shipping delays depending on product availability. Refer to estimated delivery times in cart when selecting shipping options.
We strive to get you the gear you want at a competitive price. If you find an item we offer from a competitor at a lower price, let us know. We will do our best to instantly match their price. To qualify for the Price Match, your purchase must meet the following conditions:
Price Matches may only be honored on identical items. The product must be the same make and model (i.e., the same size, color, year, etc.).
The identical items must be in stock and ready for immediate delivery at the competing dealer.
Price Matching voids any currently advertised Jenson USA promotions or special offers (i.e. free shipping, free headset...). If the competitor offers free shipping on the specific item, Jenson USA will still match the price and free shipping offer.
The product must be brand new. We do not Price Match refurbished or used items.
Our Price Match Policy is valid only for qualified Internet retailers.
The competing dealer must be an authorized US retailer for the brand. This means that the manufacturer lists this dealer as an authorized and official retail web site.
The competing online retailer's principle business must be located within the United States.
Our Price Match Policy does not combine with any competitor’s coupons, rebates, promotional offers, or product-combo deals on your order.
Some items may not be eligible for price match due to manufacturer pricing requirements.
The Price Match Policy is subject to change at any time.
If you have any questions regarding a Price Match, one of our Gear Advisors will be happy to lend you expert guidance via phone, email, or chat.
Price Matches made post-purchase will be refunded via gift card
Going with a low stack headset is an easy way to drop your stem down as low as possible. Whether it’s for aero gains, a better rider fit, weight savings, or just for the slammed stem aesthetic, whatever the motivation, Cane Creek’s Hellbender 70 Slam headset does it all and more. The headset features premium buttery smooth Hellbender 70 bearings that are designed to last countless miles. A high quality 6061-T6 aluminum top cover shaves weight and is an incredible 2mm thin (for ZeroStack configurations). Whether you’re searching for marginal gains or a cleaner look, you’ll have no problem running Cane Creek’s Hellbender 70 Slam headset for years to come.
Insanely low stack height of 2mm for the ZS and 4.6mm for the IS
Easy way to slam your stem for racing advantages or just the look
Premium Hellbender 70 bearings are designed to last
6061-T6 aluminum top shaves weight and keeps the height low
ZS44, ZS56, IS41, IS42, IS52
Top Head Tube Inside Dia.
Stem Clamp Dia.
Top Stack Height
2mm (ZS), 4.6mm (IS)
Top Bearing Type
Stainless-steel sealed Hellbender bearings
6061 T-6 Aluminum
Manufacturer’s Part Number
Cane Creek Headset Finder
To figure out which headset you need for your particular frame and fork, see Cane Creek’s Headset Finder by clicking HERE.
Love this Product?
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Q & A
Jenson USA ships worldwide, including APO/FPO addresses. For a quote, simply add the items you are interested in to your shopping cart and look for the "Shipping Options" box. You don't have to login or create an account to see shipping charges.
Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.
Get free 1-day California shipping with your $50 purchase today, on most orders. Please note this offer is only available to physical shipping addresses in California(no PO Boxes), and oversize charges still apply on some heavy/large items
This is one-half of a complete headset (the
upper portion only). You would pair it with a seperate matching lower assembly sized to suit your frame/fork to have a complete headset. Integrated-style 41mm or 42mm for integrated (Campy-Style) headset top ...
Cane Creek 40 ZS44/28. 6 Top Headset -
Short coverThis is one-half of a complete headset (the upper portion only). You would pair it with a separate matching lower assembly sized to suit your frame/fork to have a complete headset. ...
CANE CREEK AER ZS BOTTOM HEADSETLong recognized as
the world’s lightest headset, the new AER now offers a hybrid steel and aluminum bearing that provides even greater durability and a 40% weight savings over comparable models. Strategic machining and precision ...