Outside to outside front and back dimensions: 21" X 16
They fit most popular brands
Iridium alloy has extremely high melting point
***Picture is not necessarily the part listed
Its racing design has an aerodynamic character with the use of side wings that in turn have the function of absorbing part of the impact in the event of a fall given their conical configuration
CKX Atlas Carbon Byway kimpex191368 Outside to outside front andCKX Atlas The adventure helmet built to adapt faster than the terrain Fully designed in house by CKX for adventure riding, the Atlas delivers exceptional visibility, unmatched modularity, and comfort that adapts to your pace. Featuring a panoramic photochromic shield, a pivoting and removable chin bar, and an extendable multi position peak, you can modify the configuration in secondsno tools needed. Whether you ride pavement, gravel, or rugged trails,