Mas took the win on stage 6, but the circumstances on the final climb are worth analyzing. Mas warned Pogacar about a tight corner, and Pogacar subsequently ran wide and had to unclip. While Pogacar extended his overall lead to 3:34 and Mas now sits 47 seconds ahead of Roglic, the stage result itself is the interesting part.
From a tactical perspective, it is unclear if the technical error was the deciding factor or if Mas simply had the stronger legs on the steep sections of that climb. Did Pogacar's near-miss on the corner cost him the stage, or was Mas simply stronger?
The technical error was almost certainly the deciding factor here. In a high intensity finish, momentum is everything; running wide and having to unclip breaks the rhythm and forces a rider to waste a massive amount of energy just to get back up to speed. Positioning into the final turns of a climb often matters more than raw wattage because a single mistake can create a gap that is impossible to close in the final few hundred meters, regardless of who has the stronger legs.
That makes sense. When you are already operating at your limit on double digit gradients, any break in rhythm is devastating. Recovering that momentum after unclipping requires a massive anaerobic spike that can lead to premature muscular failure; it is a huge cost to pay when the finish is that close. If you lose that flow and have to grind just to get back to speed, you are essentially burning through your remaining matches far faster than if you had stayed tucked in and maintained a steady cadence.
Spot on. When you're fighting double digit gradients, grinding to get that momentum back is a killer. If you don't have the gear inches to keep the cadence up, you're just putting massive torque through the chain and your knees to overcome the dead stop. That kind of anaerobic spike is exactly how you blow up right before the line.
Exactly. When the cadence drops too low on a steep pass, you stop relying on the cardiovascular system and start relying entirely on raw muscular force. That shift to high torque is what leads to rapid muscular failure; it is why a 1:1 climbing gear is such a game changer for preserving the legs. In a finish like this, if you are forced to grind at 60 rpm or lower just to regain speed, you are essentially inviting a blowup regardless of your fitness level.
Spot on. Grinding at 60 rpm is a death sentence when you're at the limit. It's the same principle we see on the boards; spinning a 92-inch gear smoothly at 130 rpm will always beat an over-geared 100-inch grind in a match sprint. Once you lose that cadence fluidity and start relying on raw torque, you're just burning matches. If you can't keep the legs moving, you're basically inviting the lactic acid to take over before you even hit the line.