The Madone SL 6 Gen 8 is a lightweight aero road bike that stands out from its SLR siblings due to its more affordable 500 Series OCLV Carbon, without compromising on elite racing technologies. The electronic Shimano 105 Di2 group delivers lightning-fast, wireless gear shifts, while the sturdy aluminum handlebars help keep costs down. For an ultra-light performance, the bike rolls on sleek carbon wheels.