Giant Propel Disc 2018: aero road bike receives a major disc brake overhaul

The 2018 Giant Propel Disc boasts new tubing profiles, integrated aero cockpit and wheel system and disc brakes, and the brand claims it's lighter, stiffer and even faster than ever.

The the 2018 Giant Propel Disc boasts new tubing profiles, integrated aero cockpit and wheel system and disc brakes, and the brand claim it's lighter, stiffer and even faster than ever.