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