UltraFlex Fitness

09/18/2026

09/13/2026

Welcome to UltraFlex Fitness.

We believe a great gym should make you want to train and keep training.

That’s why we’re constantly adding the best equipment, unique machines, and those special pieces you don’t find everywhere else.

Old school. New school. Plate loaded. Selectorized. If it makes training better, it belongs here.

We’ve spent decades building a gym for people who genuinely love lifting, we’re nowhere near finished.

Welcome to the Ultimate Iron Playground.

Filled with lots of iron toys for strong girls and big boys. 💪

ULTRAFLEX FITNESS
Monrovia, California

Come play. 😎

09/12/2026

A little bit of UltraFlex Fitness history we are very proud of ✌️

Before Van Halen released their first album in 1978, they played on a stage inside this very building.

Long before the racks. Long before the dumbbells. Long before UltraFlex.

This building was already making noise.

The stage is gone. The amplifiers are gone. The iron took their place.

Nearly 50 years later, we’re still making noise.

ULTRAFLEX FITNESS
The Ultimate Training Playground
Monrovia, California

09/12/2026

NEW ULTRAFLEX HEADWEAR 🔴⚫️

Built to represent.
Built to stand out.
Built for UltraFlex.

New hats have landed. 🔥

Rep the standard.

09/11/2026

Simply amazing. So inspirational. Lauren White

09/02/2026

NEW BOTTLES. NEW WATER STATION. 💧

With our new water bottle station now up and running, we’ve got new UltraFlex bottles to go with it.

Fill it up. Stay hydrated. Get to work. 💪

Only $5 at the front desk.

STRENGTH. PERFORMANCE. LONGEVITY.

09/02/2026

HAMMER STRENGTH PULLOVER

Fresh powder coat.
Fully refurbished.
Dialed in and ready.

ULTRAFLEX
CREATING THE ULTIMATE TRAINING FACILITY

09/01/2026

09/01/2026

We want UltraFlex to be the place you look forward to training — where you’re surrounded by people who take what they do seriously, support each other, and make the room better just by being in it.

05/10/2026

Moms get a FREE Ghost shake today at Ultraflex. No catch. Just love. 🤍👻 Come get it.
Just show this post at the Front desk and pick your shake!