Single chainring drive train setups are all the rage these days.
With the introduction of exceedingly wide range 10- and 11-speed cassettes, the need for two chainrings has become a thing of the past.
But when you only have one chainring, the only thing standing between you and a long walk back to the trailhead is you making sure you don't destroy your one chainring.
That's why we made a charing guard to fit our O.D. cranks. It is made of aluminum and will take the hit for your chainring.
It comes in 5 bolt, 94mm BCD.