The Science Behind Yokohama Tire’s GEOLANDAR A/T4®
All-terrain tires do more than look rugged. For real performance in snow, mud, or uneven roads, it comes down to design. If you drive a Volkswagen Tiguan and want reliable traction year-round, the GEOLANDAR A/T4® brings technical solutions to everyday driving.
Let’s break down how one key feature—EDGETEC Grooves—delivers that grip when you need it most.
What Are EDGETEC Grooves?
They’re angled tread notches that cut into snow and soft terrain. But they don’t just dig in. Their geometry creates additional biting edges that stay in contact with the ground as the tire flexes.
Result: Better traction in deep snow, mud, and loose gravel.
Why Biting Edges Matter
Traditional tread can lose contact on uneven or slick surfaces. EDGETEC Grooves keep multiple edges engaged. That helps prevent slips and increases control when you accelerate, brake, or turn.
Driver benefit: You feel more secure on winter roads and off-road trails.
Real-World Engineering for Real Vehicles
For a Tiguan running 17- to 20-inch tires, the A/T4 balances all-terrain strength with daily drivability. EDGETEC Grooves are placed to maintain comfort and reduce noise while boosting grip where it counts.
Design fact: Groove depth and angle are tuned to maintain contact patch integrity.
Efficiency Without Compromise
Even with aggressive features, the A/T4 is engineered to reduce rolling resistance. EDGETEC Grooves do their job without increasing fuel use or shortening tread life.
Technology matters when conditions change. EDGETEC Grooves aren’t just aggressive—they’re smart. They let your Tiguan take on more without sacrificing ride quality or control. Visit your local dealer to learn more.
