Direct mount for Sram front derailleur. As well as "enhanced shifting performance" the direct mount allows for adequate tire clearance with shorter chainstays.
double barrel cable adjusters: these allow the use of two cables instead of running a 2-1 converter down from the Gyro. This would also allow each cable to run directly to the brake arm instead of going to a hanger. (the hanger and the cable converter are usually the parts that make the most noise against the TT)