The Nerds are back with another group episode, this time with Ronan doing his best Aussie impersonation since Dave is away on holiday. On tap this week is a detailed introduction of Giant’s new Propel aero road bike — and its wild Cadex 50 Ultra Disc carbon fiber wheels — along with a frank discussion of what’s going on with Wahoo’s revamped Speedplay pedals. And as always, we wrap up with a round of Ask a Mechanic, including a little incident Caley himself had with a little hydraulic fluid.