Simply, so that people can go faster, more efficiently than ever before. Aerodynamically speaking the SES 8.9 is second to none. When you consider it’s lighter, more versatile and comfortable than a solid disc wheel, you can see why so many athletes choose the SES 8.9. As such, the SES 8.9 is the wheelset of choice of ENVE’s family of Triathletes and Time Trial Specialists.