6-Lock Technology
The most versatile brake mount solution. Included on every G3 hub.
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Project321's patent-pending 6-lock technology is the new and enhanced version of six bolt with the optionality to run Center Lock.

True Six Bolt Retention
The rotor is fastened to the 6-Lock brake mount using six T25 Torx rotor bolts; no lock ring required.

Stainless Steel Collet
The 6-Lock collet utilizes stainless steel threads, completely eliminating thread stripping and significantly improves bolt retention.

7075 Aluminum Flange
The flange supports the stainless steel collet and provides a strong brake mount interface for the rotor.

A Better Approach to Fasteners
6-Lock allows the rotor to sit on the collet posts which eliminates all sheer force on the T25 Torx M4 bolts.

Trail Serviceable
6-Lock has the same trail serviceability as six bolt; all you need is a standard T25 torx tool.

Easy Centerlock Conversion
6-Lock removes in a matter of seconds to give you a standard Center Lock brake mount.

Colour Matched to Every Hub
Every G3 hub comes with a A colour matched 6-Lock assembly.

Mountain Hubs
Rock-Solid Engagement when it matters most.
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