Evoluxx EST21 Tires

The Evoluxx EST21 is a heavy-duty ST trailer tire in load ranges G (14-ply rating) and H (16-ply rating), on 15-inch and 16-inch wheels. It is for heavy trailers such as fifth wheels, large travel trailers, car haulers and equipment trailers. It is built for free-rolling trailer axles.

The internal structure is designed to resist deformation under load. That keeps the footprint stable and limits the flexing that builds heat in a trailer tire. The all-season tread and groove layout move water and slush out of the contact patch to resist hydroplaning. Tread depth runs from 10/32 to 11/32 inch. Speed ratings vary by size, from L (75 mph) to N (87 mph). The ST205/75R15 in load range G carries 2,679 lbs per tire on a single axle (load index 115/110). The ST235/80R16 in load range H carries 4,189 lbs (130/126).

Load range G and H tires run at high pressure, so pair them with wheels stamped for that pressure to get the full capacity.

Best-suited for: fifth-wheel trailers, large travel trailers, toy haulers, car haulers and equipment trailers.

Tire Best Features:

• Load ranges G and H for heavy trailers.
• A deformation-resistant internal structure limits heat-building flex.
• All-season grooves channel water and slush.
• Up to 4,189 lbs per tire on a single axle in the ST235/80R16 size.
• A trailer-specific design for free-rolling axles.