HCR Stem & Headset System
HCR Stem & Headset System
HCR (Hidden Cable Routing) is a better headset and stem system for road and gravel bikes that use internal headset cable routing. HCR hides the brake hoses from view without fully enclosing them in the stem or spacers for easier installation, maintenance, and travel.
With its easy-to-use and fully sealed design, HCR gives the clean look of internal routing without the downsides often associated with it.
HCR Stem includes 3 spacers: 1x10mm, 2x5mm
(*Chroma Studio Faceplates not compatible with HCR Stem)
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EASIER
HCR's under-stem channel and slotted spacers hide the brake hoses from view without fully enclosing them. This makes your bike easier to live with and also allows riders to swap stem lengths and adjust spacer stack without disconnecting their brake hoses. HCR gives the clean and modern look of internal cables without the complexity often associated with it.
PLASTIC ISN'T PREMIUM
HCR is the only standardized hidden-cable system on the market that uses a one-piece, aluminum spacer. Why? Because we believe the best bikes shouldn’t use flimsy plastic parts. Aluminum spacers look better, last longer, and maintain headset preload better.
Fully Sealed Design
While other ICR systems often expose the headset bearings to additional contamination, HCR uses a unique cable seal that prevents water and dirt ingress into the headset. This can save the rider hundreds of dollars in complex maintenance and adjustment down the road.
- Cable Seal interlocks with headset top cover and steerer tube o-ring seal
- Prevents water and dirt ingress into headset
- Long-lasting stainless steel Hellbender bearings
- Full array of seals + Hellbender bearings reduce headaches and cost of ownership for bikes with internal routing
Lightweight
The HCR stem is the lightest cable-hiding stem on the market. In some cases, these stems can weigh double that of a traditional, externally routed stem! The HCR stem is 16– 68g lighter than the competition, while the headset is 30g lighter than the leading competitor.
Totally Independent
While the HCR Stem and Headset are designed to go together for the most seamless setup, they can still be run independently. The HCR Headset can be used with any standard stem and the bearings will still be protected by the fully sealed design.
When paired with the included round conversion spacer, the HCR Headset is ready to accept any one-piece carbon cockpit of your choice.
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Additional Information
Product Specifications
EC44/28.6 | EC44/40 & IS52/28.6 | IS52/40
70mm, 80mm, 90mm, 100mm, 110mm, 120mm | -6 Degree
90mm : 160g
Stainless steel
Stainless steel Hellbender bearings
One-piece, machined aluminum HCR headset spacers, included with stem (1x10mm, 2x5mm). Standard converter spacer included with headset for use with non-HCR stem.
Interlocking cable seal, steerer tube seal, bearing lip seal, dual-lip crown race seal
Optimized for wireless drivetrains, compatible with mechanical.
Forged and Machined 6066 Aluminum
147g (EC44/EC44 headset + 15mm of spacers)
Machined 6061-T6 Aluminum
8.7mm
Technical Documents