The disc specific version of the famous ksyrium elite light strong and versatile newas disc brakes continue to gain in popularity throughout the world of road cycling were continuing to widen our range of road disc compatible wheels new to the family is this disc version of our most successful ksyrium eliteit shares the same spirit as the original ksyrium elite being super dynamic thanks to light ism4d rims ism stands for inter spoke milling making the rims super durable yet superlight by