The Cane Creek AngleSet is an interesting, innovative and strange beast, as it’s a threadless headset that gives you the ability to change the effective head angle of the frame, allowing one to slacken or steepen the geometry as desired, with up to six different offset angles. In a nutshell, the system uses upper and lower bearings that are housed in gimbals, which then self-adjust themselves within the headset cups (sort of like a ball joint), one of which has an offset for the actual angle setting.
Cane Creek AngleSet
The AngleSet headset system can transform the head angle of a bike in six offset angle adjustments, +/- 0.5°, +/- 1.0°, +/- 1.5° over its stock geometry, for steeper or slacker settings. It’s head-tube length independent and fits the most popular head-tube and forks, in both tapered and standard sizes. The self-aligning feature between the system’s main components, the bearings, gimbals and cups, and the steerer tube ensures a proper fit, and easy fork installation. When the system first came out, only forks with straight steerer’s could be used, because they were equipped with their ZeroStack cups (ZS) which had insufficient space for a tapered setup, but they recently released External Cup (EC) versions, which have a larger diameter, and more room for the offsets. A straight 1-1/8″ fork can be installed on the EC version, by using their optional conversion crown race. Depending on the particular model of the AngleSet, the eccentric or offset cup may be on the top or bottom. In addition, each model comes in two different kits, one includes only a 1.0° offset cup, while the other has all three sizes, 0.5°, 1.0°, and 1.5° (Note: for EC44 has no 1.5° ). The cup sizes are designated by the size of their top and bottom head tube inside diameter, such as 44mm, 49mm and 56mm, and either EC (External Cup) or ZS (ZeroStack). For example, my test unit was the EC44-EC49/40, which meant it was for a head tube with 44mm top and 49mm bottom (tapered 1 1/8″ – 1.5″), and a 40mm crown race for a tapered fork (1 1/8″ – 1.5″).
Available Models (Top ID -Bottom ID/Crown Race):
- EC44-ZS44/30 – straight steerer
- ZS49-ZS49/30 – straight steerer
- ZS49-EC49/40 – straight or tapered steerer
- ZS44-ZS49/30 – straight steerer
- ZS44-ZS56/30 – straight steerer
- EC44-EC49/40 – straight or tapered steerer
- ZS44-EC56/40 – straight or tapered steerer
They just came out with a trick measuring tool called the Gary Gauge, which allows you to measure every conceivable headset and fork steerer parameter, so that you choose the properly sized components. Once you get the hang of using its very useful, and it makes all the confusing headset and headtube standards and sizes measurable. You can watch Gary use the simple, cheap and cool tool at https://www.canecreek.com/tech-headsets?view=gary-gauge.