SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF! SPRING SALE 20% OFF!
Hyperbell Kettlebell
Hyperbell Kettlebell Ā· Meet Your Dumbbells' Upgrade

A Rack Of Kettlebells Used To Cost $1,000 And Fill Your Garage. Not Anymore.

The Hyperbell Kettlebell Grip clamps onto the dumbbells you already own and turns them into a full kettlebell set. Every swing. Every weight. None of the bulk.

FREE US SHIPPING
30-DAY MONEY-BACK GUARANTEE
2-YEAR WARRANTY
$59K+ RAISED ON KICKSTARTER
Why Hyperbell

One Grip Replaces Your Entire Kettlebell Rack.

Build Strength And Cardio At Once

Build Strength And Cardio At Once

Kettlebell exercises are dynamic and high-intensity. They build muscle while significantly improving cardiovascular fitness, helping you increase stamina with every session.

Save Hundreds On Equipment

Save Hundreds On Equipment

A full kettlebell set can cost $300–$1,600. The Hyperbell Grip gives you that same full set using the dumbbells you already own — for less than a tenth of the cost.

Durable Grip, Adjustable Handle

Durable Grip, Adjustable Handle

Made with high-strength polycarbonate. Over-engineered for durability and extensively drop-tested, it holds up to 100 lbs and is built for rugged daily use.

The
Hyperbell Kettlebell.

The Original Dumbbell-to-Barbell Converter.

The dumbbells you already own become a full barbell in under a minute.

No new weights. No bulky equipment. No drive to the gym. No DIY pipe-and-prayer setup.

Just clamp, lock, and lift — and you've got bench press, squats, deadlifts, rows and presses on demand, in the space you already have.

The missing piece between "I have dumbbells" and "I have a real gym."

Hyperbell Kettlebell
How It Works

Three Steps.
Under A Minute.
Every Time.

No tools. No bolts. No setup curve. If you can clamp it, you can lift it.

Clamp It Clamp It animation
01

Clamp It.

Clamshell clamp opens, drops your handle in, and the foam auto-fits Bowflex, Peloton, JaxJox & most adjustable dumbbells. Zero adjustments.

Hover To Play
Lock It Lock It animation
02

Lock It.

Twist the locking collar shut. The harder you load it, the tighter it grips. Patented clamshell engineering, drop-tested to 200 lbs total.

Hover To Play
Lift It Lift It animation
03

Lift It.

Squat. Deadlift. Row. Press. Curl. kettlebell-grade lifts your dumbbells alone could never do using the gear already in your house.

Hover To Play
Risk-Free

Try It For 30 Days. Keep It For Years.

If — for any reason — you aren't happy with your Jayflex equipment, simply send it back within 30 days. We'll give you a full refund, no questions asked. And we're so confident in the quality and durability of Hyperbell products, we offer a 2-year warranty to fix or replace your equipment — for free.

Universal Fit

Works With Most Dumbbells.

Dumbbell handle length needs to be at least 4.5″ long. Most dumbbell handles are approximately 6″ long. The dumbbell handle's diameter can't exceed 1.5″ at its thickest point.

Handle length
≥ 4.5 in
Handle diameter
≤ 1.5 in
Real Garages · Real Apartments · Real Workouts

No Scripts. No Studio. Just Real Customers.

Real people. Real spaces. Real workouts using the Hyperbell system in the spaces they actually train in.

Over 100,000 Jayflex Customers