Mount:  Direct Attachment

5 as an alternative to a 2" stack of headset spacers combined with a standard H-Bar

Wider linkage ensures durability and more precise shifting

Directional hex pattern

LAZER Z1 Kineticore Helmet rear-derailleur Mount: Direct AttachmentIconic, airy design with top rated protective capability for wide open riding. Far, fun and full gas. If thats your formula for a great ride, the latest Z1 is for you. Weve kept the breezy silhouette and supremely comfortable fit that makes this helmet so beloved, while further enhancing protective capability with an all new KinetiCore liner. And when fitted with optional accessories like the Aeroshell for improved aero efficiency or the universal LED