These QRings have the same single offset bolt at 113mm on the crank arm fixture.
Made exclusively for Campagnolo Ultratorque compact systems.
NOTE: You will need a set of chainring bolts (male & female) for the newer 2011 version compact ultratorque cranks that have threaded holes in the inner chainring to accept the chainring bolts. The campag part nos for this set is FC-SR100.
Qrings will fit earlier versions by utilising the original campag bolt set.