1. A variable transmission comprising:an input shaft;
a first ring assembly rotatably disposed in a housing, the first ring assembly drivingly engaged with the input shaft using a plurality of double planet gears rotatably disposed on the first ring assembly, the first ring assembly configured to be prevented from rotating relative to the housing by a second grounding clutch, and the first ring assembly comprising a first variator ball engagement surface that is in driving engagement with a plurality of tiltable variator balls;
a variator carrier assembly rotatably disposed in the housing and configured to be militated from rotating relative to the housing by a first grounding clutch, the variator carrier assembly comprising
a drive shaft drivingly engaged using a second sun gear engaged with a second gear of each of the double planet gears, and
an annular arrangement of the plurality of tiltable variator balls each having ball axle shafts; and
a second ring assembly rotatably disposed in the housing drivingly engaged with a vehicle output, the second ring assembly comprising and a second variator ball engagement surface that is in driving engagement with each of the variator balls,
wherein said transmission has an infinitely variable operating mode and a continuously variable operating mode.