Life Fitness SF90 Side Press – An Engineering Masterpiece for Building Round, Wide Shoulders

Expert review of the Life Fitness SF90 side press machine

Having broad, well-shaped shoulders is one of the main goals of bodybuilders, and the middle deltoid muscle plays a key role in creating that “V”-shaped look. The Life Fitness SF90 Side Press is designed with precision American engineering to achieve this goal in the safest and most effective way possible.

Muscle isolation and precise biomechanics:

The biggest challenge in the dumbbell lateral raise exercise is the involuntary engagement of the trap muscles (trapezius) and improper pressure on the shoulder tendons. The SF90 model solves this problem with a precise pivot point aligned with the shoulder joint. The machine’s arms follow a perfectly circular and natural path, ensuring that tension is focused exactly on the middle deltoid fibers and preventing cheating or momentum-based lifting.

Ergonomic design and comfort:

The arm pads of this machine are covered with high-density foam and anti-sweat industrial leather upholstery to ensure the athlete’s forearms and elbows are not irritated during heavy sets. The front handles are designed to help maintain body balance and keep the athlete’s focus entirely on the target muscle. The seat features an easy height adjustment system (Gas Assist), allowing users of any height to align their shoulder axis with the machine’s pivot point.

Commercial build quality:

This machine is built for continuous and heavy-duty gym use. The main chassis is composed of thick steel profiles coated with electrostatic paint. This coating ensures the machine’s durability against moisture and impact. Its cable system and pulleys operate very smoothly and silently, ensuring the athlete’s focus is not disrupted by distracting mechanical noises. The weight stack protective shield also provides full safety within the gym environment.