Does it include a lock: No lock with this one

1/8 steerer tubes

The Oakley Jawbreaker Sunglasses are the ultimate in sports glasses

great durability

this top cap with integrated 5mm spacer is specifically designed for carbon steering tubes

Giro Quarter Helmet - L - Matte Black - AS-NZS 2063-2008 Standard Do Not Ship Internationally Does it include a lock:Giro's lowest profile helmet, ever! The Quarter is optimized for street, skate park, and dirt jump riding. Capable of taking multiple impacts, the external shell is abrasion resistant, so no matter what you hit your head on, this helmet will keep functioning and keep looking good while doing so. Multiple sized, replaceable, sweat absorbent foam pads help keep your head cool and provide that perfect fit.