toroidal cavities 36 38 such that the speed of output discs 26 is approximately 1 457 times the speed of input shaft 10 this corresponds to a variator speed ratio of 1 457 the variator speed ratio is defined as the absolute value of the ratio of the speed of the output discs 26 to the speed of the input shaft 10 sun gear 30 is driven at the speed of discs 26 carrier 24 is driven directly from input discs 20 22 at the same speed as that of input shaft 10 and the output is taken at ring gear 42 with the transmission so disposed the speed of ring gear 42 carrier 56 and output shaft 18 is substantially zero the vehicle accelerates or drives away in the forward direction from the geared neutral condition by changing the drive ratio of variator 16 to the low mode forward ratio a low mode forward range having an overall speed ratio of about 0 40 is produced by setting the angular position of rollers 32 34 such that they contact variator discs 26 at a radially outer position and contact variator input discs 20 22 at radially inner position the opposite configuration from that showing in fig1 in low mode forward discs 26 and sun gear 30 are driven at approximately 0 47 times the speed of input shaft 10 and carrier 24 is driven at.