Liv has officially pulled the curtain back on the fourth generation of the EnviLiv, and if you believe the wind tunnel data, the “marginal gains” era just got a lot less marginal. The headline claim is a staggering 18.44-watt saving at 40 km/h compared to the previous generation. In an industry where we usually celebrate a 2-watt improvement, 18 watts is the kind of leap that makes you wonder if the old bike was trailing a parachute.
However, much of that gain is tied to the new CADEX Max 50 wheels and an integrated aero cockpit that hides every millimeter of cabling from the wind… and likely from any mechanic who doesn’t have a degree in neurosurgery. The frame itself has seen a modest 45-gram diet, but the total system weight is down by 355 grams.
What’s actually useful for those of us riding in the real world is the move toward 32mm tire clearance and a thinner, more compliant rear triangle. It’s a performance bike that finally acknowledges that your regular backroads aren’t exactly the smooth floor of a velodrome in Mallorca.
Accompanying the bike are two new five-star Virginia Tech-rated lids: the Pursuit MIPS (the aero specialist with a central dimple that looks like a very fast belly button) and the Rev Pro MIPS. Both use the Mips Air Node Pro system, which integrates the safety tech directly into the padding so you don’t feel like you’re wearing a plastic salad bowl.
It’s a beautiful, technical package, even if we’re still a little skeptical about the “18-watt” miracle.