Seirus Innovation Quick Clava Chess Snow BalaclavasThe Chess Clava from Seirus is an unlined , acrylic, reversible style hat that comes with a built in clava that tucks seamlessly up into the hat when you don't need it, and pulls down for full face and neck coverage when you do.

The core innovation that powers the Armour:

adequately handling the force dished out from Di2 front derailleurs

400 PSI (27

Dimensions: 60 x 41 x 64mm

Wind Tunnel™ ventilation system delivers continuous airflow for cooling during long rides

Pro-Level Bits: The Mini-Switch includes the most common hex and Torx bits for modern bikes

It's a fast

SRAM DUB Compatible: Specifically optimized for use with SRAM DUB spindles

Quick and Easy Assembly: The of efficient maintenance

Optimized for control without compromising grip or bar feel

Meets carry‑on size restrictions for most major airlines

and the titanium fastening bolt