Description
+/- 0.5 Degree Adjustable Headset Cup Alloy Frames
This Feral +/- 0.5 degree headcup fits aluminum frame Specialized bikes that feature geo adjustable headset cups and allows you to steepen or slacken your headtube angle by 0.5 degrees instead of a full 1.0 degree using the adjustable headcup from Specialized. We also made a few minor design mods that provide better fit and performance.
CNC Manufactured from a single block of 1061-T6 Aluminum to ISO 2768 Fine Standards, our headcup is strong and precise. We then finish with 120 Micron Bead Blast, Anodize, and Laser Engrave the Feral MTB Components brand for a unique part that is both functional and attractive.
SPECIALIZED ALLOY BIKES
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- 2021+ Stumpjumper EVO
- 2022+ Gen.3 Turbo Levo
- 2023+ Gen.2 Turbo Levo SL
- 2025+ Stumpjumper 15
SPECIFICATIONS
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- Adjustable +/- 0.5 Degrees
- CNC 1061-T6 Aluminum
- Finish: Bead Blasted
- Color: Black Anodized
- Weight: 29 grams
- Includes: Rubber O-ring Seal
- Warranty: Lifetime / No Fail
Chris Burnham –
I got the headcup installed without issue and went for a ride today. Installation was easy and all the components of the headset fit in snuggly. It seemed about the same quality as the Specialized provided adjuster headcup. I’m very happy with the performance after one ride. No creeks and very smooth steering action. I went with the steeper setting (65deg) and am loving it. The stock 64.5deg was a little too slack for me because I felt like it sterilized intermediate trails and had a little too much ‘flop’ feeling while turning, for my taste. I tried the 65.5deg cup provided by specialized, but then it felt just a touch too steep for slow drops on descents. Now with your headcup (65deg) I find it as a really good compromise of the traits I want in a bike (plus I over filled the fork by about 5 psi). I come from a xc background, and I still do enjoy the more responsive feel on the trail, but I live in Colorado so there are a lot of steep and technical trails. I’m looking forward to trying it out on a more technical trail.
I found your website by google searching “specialized stumpjumper evo 0.5 degree headset adjustment.” I was honestly very surprised to see that someone made it! The specialized supplied headcup is too big of a change in my opinion. You wouldn’t think 0.5-1.0 degrees would make a noticeable difference but it sure does.