Inside Resistance Strength · Allentown, PA
Performance
Is The Standard
Coached sessions, structured programming, and a facility built specifically for people who want to get better at something. F13 isn't just a gym floor — it's where the work gets done.
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20
Squat Racks
24/7
Access
Olympic
Lifting Platforms
HYROX
Ready
F13
Performance Center
What Is F13
More Than
A Gym Floor
F13 Performance Center sits in the back of Resistance Strength and runs as its own operation. You get Olympic platforms, 20 squat racks, turf, bumper plates, and HYROX conditioning equipment — but what makes it different is the structure behind it.
Classes are coached. Programming is intentional. Whether you're an athlete staying sharp in the off-season, training for a HYROX event, or just done winging your sessions — F13 is built for that.
RS members get access to both facilities. You can add F13 to your existing membership or join F13 on its own. Either way, you're in.
What We Do
The Training
01
Strength & Olympic Lifting
Squat. Pull. Press. Snatch. Clean. The foundation of everything. Platforms and racks built for people who take these lifts seriously.
02
HYROX Conditioning
Cardio with a point. Built around the HYROX format — functional movements, rowing, runs, and sleds. Training that translates.
03
Sport Performance
Small-group training built around your athletic goals. Four sessions a week, programmed with purpose. Not random.
04
In-Season Training
Two sessions a week to stay sharp without digging a hole. Built for athletes who need to maintain performance mid-season.
Three Versions. One Method.
Choose Your Class
Every F13 class runs the 4S's method — but we offer three formats depending on your focus.
Strength Focus
FitFocus
Barbell-driven and strength-first. FitFocus is built around compound lifts — squats, presses, pulls — with conditioning as a supporting element. If getting stronger is the goal, this is your class.
Conditioning Focus
Hybrid FitFocus
Built for athletes who want to move, sweat, and build real-world capacity. Hybrid FitFocus leans on odd objects — kettlebells, medballs, sleds — with conditioning as the centerpiece. The ideal structure for HYROX training or anyone chasing endurance alongside strength.
Competition Focus
Competitor Focus
Designed for athletes training to step on a platform, enter a competition, or peak for an event. Programming is periodized around competition timelines — building a base, pushing intensity, and tapering on purpose. If you're preparing to compete, this is where you train.
The F13 Training Method
The Four S's
Every F13 session is built around four principles — not just to work you hard, but to build a body that actually performs in real life.
S
Get stronger. Feel it everywhere.
Strength
Every session is built to make you measurably stronger over time. We use progressive overload, smart programming, and the right equipment to ensure you're not just working hard — you're actually getting somewhere. Strength built here carries over to everything: sports, work, life.
S
A strong foundation prevents everything.
Stability
Most injuries happen when strength outpaces control. We train your core, joints, and posterior chain to move with stability under load — so you stay healthy, train consistently, and build a body that holds up long-term. This is the work most gyms skip.
S
Move well. Then move heavy.
Skill
Technique isn't a beginner thing — it's everything. We coach the movements that matter: squats, pulls, presses, carries. You'll learn to move with precision at lower intensity before adding load, so your form improves alongside your fitness rather than breaking down under it.
S
Conditioning with a purpose.
Sweat
F13 conditioning isn't random cardio — it's targeted. Each session is designed to train specific energy systems, improve your capacity under fatigue, and build the kind of engine that makes everything else easier. You'll leave spent, but never wrecked without reason.
The Team
Meet The Coaches
They're invested in your progress — not just when you're in the room. The culture here starts with the people leading it.
The Space
Built For
Real Work
Full Equipment List
Free Weights
- —Rubber dumbbells to 100 lbs
- —Kettlebells to 50+ lbs
- —3 trap bars
- —Bamboo bar
- —Safety squat bar
- —Medballs to 30 lbs
- —Bumper plates
Racks & Platforms
- —20 squat racks
- —2 Olympic lifting platforms
- —Belt squat
- —Rogue boxes
- —Resistance bands
- —Olympic rings
- —Climbing peg board
Conditioning
- —Echo bikes
- —Rowers
- —Skiers
- —Assault treadmills
- —Sleds
- —HYROX training equipment
- —Turf area
Strength Accessories
- —GHDs
- —Reverse hyper
- —45° hyper extension
- —Foam rollers
See It For Yourself
F13 In Action
The Floor
Hear From Members
What Members Say
The Community
Speaks.
“If you're looking for a place where people WON'T judge you for how you look, how much you're lifting or give you looks to make you feel uncomfortable, THEN THIS IS YOUR PLACE!!! I've been coming to this place for about 2½ years and I wouldn't go anywhere else. The coaches make you feel welcomed! Everyone treats each other like family! Everyone pushes each other to be better and to do better than their last lift! I absolutely love this place!!!!”
Steven Torres
Focusing on Fitness since January 2019
When We Train
Class Schedule
Monday – Friday
Wednesday classes are partner workouts — but you can always show up solo. We'll pair you up.
Saturday
Saturday is a partner class — come solo and we'll get you set up with someone.
Sunday — Rest Day
Join F13
Memberships
Access to the 4S's Method programming designed to help you reach your goals — plus Resistance Strength facility access on the days you train. *Membership dependent.
Free Trial
Free
One 1-hour class for new members using the 4S's method. Train with the coaches, see the space, decide if it's for you.
HyperFocus
$245 / mo
A fully custom program written for you — training, nutrition, and direct access to your coach's number for questions. Built for one person. Starts with a consultation so we can build the right plan from day one.
Unlimited Access
$199 / mo
Unlimited F13 classes and performance sessions every month, plus 24/7 access to the full Resistance Strength facility. Train on your schedule, as often as you want.
12 Sessions / Month
$179 / mo
Three sessions a week with room to push more. The go-to for members who train F13 consistently.
8 Sessions / Month
$159 / mo
Two sessions a week, every week. Structured enough to build on, flexible enough to fit real life.
Sport Performance
$199 / mo
Athlete-specific training for elementary, middle, and high school athletes. Up to four sessions per week, programmed to build speed, strength, and sport-ready performance — not just general fitness.
In-Season Sport Performance
$139 / mo
Athlete-specific training for elementary, middle, and high school athletes during their season. Two sessions per week — keeps them sharp, strong, and injury-resistant without overloading their schedule.
Student Unlimited
$159 / mo
Full access to every F13 class. Built for student athletes who train seriously.
Punch Card
$250
10 F13 sessions, use as needed.
First Time?
Your First Class Is On Us
Come in, train with the coaches, see the space. One class, no obligation, no pitch on the way out the door.