Sea Otter 2023 – Project 321 G3 Hub and 6-Lock System

by Brian Mullin on April 25, 2023

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Installing the 6-Lock System

6-Lock

The crown jewel of their display at Sea Otter was the Project 321 6-Lock System, allowing you to use either a CL or 6-bolt rotor on the same hub with an innovative flange system. They created a hub with a 6-bolt/Center-Lock convertible flange that will allow fitment of both style rotors.

It’s not the typical adapter system that utilizes a CL flange and a lock ring. Instead, their split ring 6-bolt system fits into a slot under the CL interface, then their CL flange slides onto the 6-bolt flange, and then you attach a 6-bolt rotor. When the bolts are tightened down, the system securely snugs itself into place, locking down the rotor without any lock ring required. Remove the 6-Lock System and convert the hub back to normal CL usage.

The solution is elegant and simple and, according to P321, has so proven to be very strong and reliable. In terms of mounting a 6-bolt rotor, it also has several advantages over and above traditional 6-bolt flanges.

Thoughts => This is one of the coolest things I saw at the show!

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6-Lock split ring and CL flange

The 6-bolt flange has a split ring that fits into a groove/slot on the hub, and the CL flange then meshes into their CL hub.

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288 POE, 1.25°, and 8 pawls

G3 Hubs

Their new G3 hubs are based on the same proven magnetic actuation as their G2’s, with some innovative new technical features. They have upgraded the hubs with 288 POE (points of engagement) and 1.25° rotation by having 4 teams of 2 pawls (8 pawls.) The older G2 hubs utilized and had 216 POE and 1.66° of rotation.

When engaged, multiple teeth on each pawl lock into a hardened steel ratchet ring while each pawl’s magnet ensures perfect alignment.

Thoughts => Who doesn’t want more POE!

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G3 hub shell showing the magnetic pawls

The heart of the G3 hub is a bombproof locking engagement system with eight pawls equipped with Neodymium rare earth magnets.

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Cutaway of the G3 hub

They have also improved the seals and tolerances of things.

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Colors

They will also offer a slew of fun colors and end caps.

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