1/8″ teeth, CNC’d from 7075 aluminum for strength and styleIntegrated guard for chain protection can be run inside or out 4 rotation positionsPlenty of guard clearance for popular half link chains! Weight: 25T – 130 gr ( 4,6 oz. ), 28T – 145 gr ( 5,11 oz. )#pridestreet #psbikes #guardsprocket