Yokohama 31X/10.5 R15 109S Geolandar A/T G015 2024

The Yokohama GEOLANDAR A/T G015 31X10.50R15 109S is an all-terrain tyre designed for SUVs, 4x4s and light trucks that regularly combine paved-road driving with off-road use. Its balanced tread design is engineered to provide dependable on-road handling while maintaining traction on dirt, gravel, loose surfaces and other challenging terrain.

About Yokohama  R15 109S GEOLANDAR A/T G015

Tyre Size and Fitment

The 31X10.50R15 size combines a 31-inch nominal overall diameter format with a 10.50-inch nominal section width and a 15-inch rim diameter. Yokohama lists this size with an approved rim-width range of 7.0 to 9.0 inches. The 2024 Yokohama catalogue identifies the size as 31X10.50R15 109S with an Outlined White Letter (OWL) sidewall treatment.

Load and Speed Rating

The 109 load index corresponds to a maximum load capacity of 1,030 kg per tyre under the applicable load conditions. The S speed rating permits speeds up to 180 km/h. The specific version is also listed as Load Range C, with a maximum cold inflation pressure of 50 psi in Yokohama's North American specification data.

All-Terrain Performance

The GEOLANDAR A/T G015 uses an all-terrain tread pattern developed for a combination of highway and off-road driving. Optimised lug grooves help generate additional biting edges on loose surfaces, while the tread layout is designed to maintain useful traction across dirt, gravel and uneven terrain.

Wet-Road Performance

Four deep main grooves are designed to evacuate water from the contact area and support hydroplaning resistance. Yokohama also uses 3-D shaped sipes to help maintain tread-block stiffness while creating additional edges for wet-road grip. The European specification for this exact size carries a wet-grip rating of C.

Dry Grip and Durability

The GEOLANDAR A/T G015 incorporates a tread compound and tread-block design intended to provide resistance to wear, cuts and chipping during mixed-surface use. Its 3-D siping technology helps control tread-block movement, supporting more consistent wear and stable handling on paved roads.

Snow and Winter Capability

This tyre carries the 3-Peak Mountain Snowflake (3PMSF) marking, indicating certification for severe-snow service under the applicable testing requirements. The tread design also incorporates additional biting edges intended to improve traction on snowy surfaces. It should still be selected according to the vehicle manufacturer's requirements and the expected driving conditions.

Comfort and Road Noise

Although the GEOLANDAR A/T G015 has an aggressive all-terrain appearance and tread pattern, Yokohama incorporates pitch variation and tread-design optimisation to help control road noise. The exact 31X10.50R15 109S specification is listed with an external rolling noise value of 73 dB and noise class B in the European database.

Production Year

This product listing is specified as a 2024 model year. The actual manufacturing date of an individual tyre should always be confirmed from its DOT or tyre-sidewall production code.

Who Should Consider This Tyre?

The Yokohama GEOLANDAR A/T G015 31X10.50R15 109S is suited to SUV, 4x4 and light-truck drivers who want one tyre for a mixture of paved roads and off-road environments. It is particularly relevant for drivers who need all-terrain traction, durable construction and certified severe-snow capability without moving to a dedicated mud-terrain design.