Just a cautionary tale for y'all:
A few months ago I upgraded my old SPD shoes and pedals and got a set of TIME Xpresso 4 pedals for my road bike. I went with them because:
- their design was pretty cool and unique -- they use a carbon spring that doesn't require maintenance and is supposedly more durable than a typical metal spring
- they were cool looking and different from the usual SPD-SL pedals
- they were on sale ($72 from Competitive Cyclist)
I put a bit over 300mi on them, with no issues. I enjoyed how easy they were to clip into given their spring design. Then...it happened. Less than 20mi into my first Metric, the "durable" carbon spring snapped in half, leaving me with basically the world's smallest toe-clip to ride the remaining 45 miles with. At one point I tried to get the mech support guy at one rest stop to rig it so I'd be permanently clipped in for the rest of the ride, which resulted in me falling immediately. I rode the rest of the way with a broken pedal.
Long story short, unless you clip in very precisely, that is, don't put much weight on the back of the pedal when you clip in, don't get these. Maybe down the line when I'm more exact with my clipping in, they would last longer, but due to their design all of your weight does torque the carbon leaf spring so it's probably not ideal for Clydes/Athenas.
Also, the design/material of their cleats makes them wear really fast. The three "wear pads" that you walk/stand on were totally trashed on mine, and I didn't walk in them very much -- so mostly from putting my feet down when stopped.
Gotta love CompetitiveCyclist for accepting my return from the ruined pedals. For now I'm using the bottom-of-the-barrel Shimano SPD-SL pedals. Which are working fine...I guess