If you’ve ever rolled up to a road race or triathlon and had to “quickly” swap cassettes from a deep wheel to a shallow one because the wind picked up over night, the new Two Point Zero Phoenix Hub system is worth a look. Designed to make cassette and wheel swaps extremely fast and easy, the heart of the hub slides completely out of the shell and pops into a wheel prebuilt around a second shell. And with additional hub bodies and shells available separately, you could show up on race day with all the options to mix, match and suit the course and conditions perfectly.
The system is modular in other ways, too. Hub end caps are available for 130 and 135 road quick release, and the body has a Centerlock rotor mount designed into it. This lets you run it on rim or disc brake wheels. Need to convert to thru axle? No problem, hub bodies with 12×142 are coming, too.
The shell is what’s laced to the rim, uses a keyed hexagonal-ish internal shape to fix the hub body into it. Just slide it in, then tighten two lock nuts on the non-drive side with the included tool (shown in top image).
You can also use the system to have multiple cassettes at the ready. I’m thinking that might be a good option for cyclocross where a course could turn nasty (or freeze) overnight and you need something with a different range or big cog. All of the parts -body, shell, freehub body, tool, lock rings, end caps, etc.- are available separately so you can build up as many systems as you want. A kit with one hub body and two shells (so you can build up two rear wheels) retails for $749 with standard Japanese steel EZO bearings, with Kogel and CeramicSpeed upgrades available.
To set it up with disc brakes, simply use Centerlock rotors or a Centerlock to 6-bolt adapter. The hub shell on the right is the production version with cutouts to save weight. Complete hub weight is 400g, and the outer shell on its own is about 107g.
Inside is a 104-tooth drive ring with six three-toothed pawls, clocked for around 3.5º engagement. They’re available now for pre-order in 24, 28 and 32 hole options.