Really the only major difference is the dimpled underside of the pedal body. The locking mechanism is still in the cleat, they still rotate on the same amount of needle bearings, which require some maintenance, and they still have the same 11.5mm stack height on three-hole shoes. When you get down to the guts of the Zero Aero, it’s pretty much identical to the standard model. There were only a handful of occasions in three months of testing when taking off from a light we found the pedal facing the wrong direction - a half turn of the crank brings it into the right position. As Speedplay pedals don’t spin freely on the axle by design (if yours do they need some grease) when you unclip, even if you rotate the cranks the pedal will stay in the same position. So how do they ride? And, with one of the biggest selling points of Speedplay pedals being their effortless dual-sided entry, are they still worth it when you take that away?įrankly, we didn’t really notice the one-sided entry. Combined with the Walkable Cleat though, there’s no doubt that the Zero Aeros create an ultra sleek profile. Dimples are not a new idea in cycling and have long been used on wheels, helmets and even some clothing. The zero aero forgos the dual sided entry for a dimpled aero underside: the zero aero forgos the dual sided entry for a dimpled aero underside How much difference do you think an aero pedal can make?Īs with a golf ball, the dimpled surface is said to create a turbulent boundary layer of air, which should speed airflow.

Speedplay zero installation