Where is HIIT AF located?

HIIT AF is at 8160 Haven Avenue Suite 102 in Rancho Cucamonga, California 91730. We're just south of Foothill Boulevard on Haven, with free parking right out front and easy access from the 210 and 10 freeways.

How much does HIIT AF cost?

Unlimited monthly membership is $139 per month, with no contract — cancel anytime. A 10-class pre-paid pack is $300. Your first class is free, so you can try us before you commit.

Is the first class really free?

Yes. Your first 45-minute HIIT AF class is completely free with no obligation. Book online or walk in 10–15 minutes early and a trainer will get you set up.

How long is each HIIT AF class?

Each session runs 45 minutes. A new class starts every 45 minutes during operating hours. Members wrap their hands and stretch out before jumping into the 10-station circuit.

Do I need experience to start at HIIT AF?

No experience is required. A trainer is on the floor with you from the first minute to the last, demonstrating every movement and modifying it to your level. First-timers, athletes, and people returning after years off all train side by side.

Is HIIT AF good for weight loss?

Yes. The combination of kickbox HIIT and full-body strength burns 500–700 calories per 45-minute session and builds lean muscle. Member Gina R. lost over 60 pounds training with us.

Are kids classes available at HIIT AF?

Yes. We run Kids Kickbox small-group training that combines age-appropriate boxing and kickboxing technique with strength and conditioning. It builds confidence, discipline, and self-defense fundamentals.

Are there age restrictions?

We welcome all ages in our group classes. For kids under 10, we recommend our 1-on-1 personal training so they can build fundamentals before joining the circuit.

Do you offer 1-on-1 personal training?

Yes. We offer 1-on-1 personal training built around your specific goals — weight loss, conditioning, strength, or boxing and kickboxing technique. Schedule is flexible.

Do I need my own boxing gloves?

No. We provide loaner gloves that are sanitized after every use. You're welcome to bring your own if you'd rather.

What should I wear to HIIT AF?

Wear comfortable workout clothes with closed-toe gym shoes. Bring a water bottle and a small hand towel. No special equipment needed for your first class.

Should I arrive early for my first class?

Yes — arrive 10 to 15 minutes before class starts. Your trainer will walk you through the station layout, get you fitted with gloves, and answer questions before the warm-up.

What's the closest HIIT gym to Upland?

HIIT AF is roughly 4 miles east of Upland on Haven Avenue, about a 10-minute drive via Foothill Boulevard. It's the closest kickbox and strength HIIT studio for Upland residents.

What's the closest HIIT gym to Ontario?

HIIT AF is about 5 miles north of central Ontario at 8160 Haven Ave in Rancho Cucamonga — roughly 10 minutes via Haven Ave or the 10 Freeway.

What's the closest HIIT gym to Eastvale?

HIIT AF is approximately 7 miles north of Eastvale, about 15 minutes via the 15 Freeway and Foothill Boulevard.

Does HIIT AF have parking?

Yes. Free surface parking is available directly in front of the studio at 8160 Haven Ave Suite 102, with overflow parking throughout the plaza.

Is HIIT AF beginner friendly?

Completely. Most of our members started with zero combat-sports or HIIT background. Every movement is demonstrated, every station has a modification, and a trainer is always on the floor.

New members · Rancho Cucamonga

Train different.Half off month one.

New members: train 45-minute kickbox + strength HIIT with a coach on the floor — free first class, then 50% off Unlimited month one.

✓ Free first class — no obligation
✓ Code LOCAL50: $69.50 first Unlimited month
✓ Then $139/mo · no long-term contract
✓ Coach on the floor every class · 10 stations · daily program change

Start free class quiz Skip to book free class

8160 Haven Ave Suite #102, Rancho Cucamonga, CA 91730 · (310) 384-2014

Limited new-member path

$69.50

first month · then $139/mo Unlimited

Use code LOCAL50

Honest scarcity: new members only, first billing cycle only. We don’t run fake countdown timers.

Unlock with quiz ↓

45min

Minutes Per Session

Training Stations

40+

Years Combined Experience

100s

Workouts — No Repeats

The plan

Three steps. No theater.

01
Take the 60-second quiz
We match your schedule, experience, and goal — no hard sell, no junk form.
02
Book your free first class
Coach on the floor. Loaner gloves. 45 minutes across 10 stations. Feel the format.
03
Join with LOCAL50
Half off Unlimited month one ($69.50), then $139/mo — cancel anytime.

Who guides you

Steven Liu

Head Trainer & Founder

With 40 years of martial arts experience and a decade of operating Kickbox Fitness gyms, Steven brings unmatched expertise to every session. His philosophy centers on making high-intensity training accessible to everyone—regardless of age or experience level.

Shantay

Lead Kickboxing & Strength Trainer

A dedicated kickboxing and strength trainer with 6 years of experience, Shantay is known for her energy, precision, and ability to push you beyond what you thought possible. Her classes blend technical skill with pure intensity.

60-second fit quiz

Unlock half off month one.

Answer a few questions. Get code LOCAL50 for $69.50 first Unlimited month (then $139/mo). Free first class either way.

First month

$69.50

Then

$139/mo · no contract

No spam sequences. Studio follow-up only. New members · Rancho Cucamonga.

Real talk

The reasons people wait — answered.

I don’t have an hour and a half

You don’t need one. Sessions are 45 minutes. Early AM, mid-morning, and after-work options most weekdays.

I’ve never boxed or done HIIT

Most members started that way. Every movement is demonstrated and modified. Trainer stays on the floor — not a wall screen.

I already wasted money on a gym membership

That’s why the first class is free and month one is half off. Prove the floor before you pay full price.

“

What Members Say

Testimonials

5.0 rating · 4 member reviews

The trainers are always motivating and I appreciate that every workout is unique, which keeps me engaged and motivated. For me, it's not solely about losing weight (though I've lost over 60 lbs), but also about supporting my mental well-being and feeling strong and confident. This gym has truly become a second home. Thank you HIIT AF — you guys are amazing!

Gina R.HIIT AF Member

ABSOLUTELY LOVE HIIT AF!!! I've always been afraid to go to the gym because I had no clue what I was doing. My mom and I decided to give HIIT AF a try and it's a fun activity for us to do together — it gave us both the confidence to work out alone too. Working out is actually fun! The workouts are already preplanned (making it less stressful) and Steven & Shantay guide you through it all (making the experience more personable).

Victoria H.HIIT AF Member

My favorite gym ever! The trainers are great at supporting you to reach your goals, while pushing you to achieve more than you think you can. The workouts are full body, and a lot of fun. The atmosphere makes you feel comfortable and confident in working out and reaching your goals. Could not recommend enough!!!

Sam F.HIIT AF Member

If you want a place where you can feel safe, encouraged, empowered, and championed, then you want to try out this facility. I participated in a team challenge where we got to know each other and bond — by the end I had lost weight, gained strength, and learned how to carry confidence! I enrolled my daughter (age 12) and she tells me how happy she is going to HIIT AF because she's learning skills that make her feel confident. You will not be disappointed with these trainers — absolutely amazing people who care about everyone!

Devin B.HIIT AF Member & Parent

FAQ

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$69.50 first mo · free class

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