Adjustable Dumbbell | X Series | 2.5KG - 40KG

X SERIES Adjustable Dumbbell – 2.5kg to 40kg

Built for serious lifters chasing maximum strength, the X SERIES 40kg Adjustable Dumbbell is our heaviest adjustable dumbbell. It adjusts smoothly and precisely from 2.5kg up to 40kg, giving you a full heavy dumbbell rack in one compact, rugged unit. With solid steel construction and a 5-year warranty, it's the ultimate heavy adjustable dumbbell in NZ for advanced home gyms and strength training.

Why Choose the X SERIES 40kg Adjustable Dumbbell?

• 2.5kg to 40kg weight range – Go from light accessory work to heavy presses, rows, lunges and split squats with one dumbbell.
• Built for progressive overload – Keep adding weight as you get stronger without buying more equipment.
• Quick, tactile adjustment – Fast, precise weight selection keeps your training flow uninterrupted between sets.
• Heavy-duty steel construction – Solid steel build made to handle tough, heavy training sessions.
• Space-saving design – Includes a sturdy base plate for compact, organised storage.
• 5-year warranty – Long-term protection for real confidence in your investment.
• NZ-wide delivery – Fast, reliable shipping to Auckland, Wellington, Christchurch and everywhere in between.

Replace 15+ Pairs of Dumbbells

A heavy dumbbell rack running from 2.5kg to 40kg means 15+ pairs of fixed weights, a lot of floor space and a big outlay. The X SERIES packs that range into one adjustable weight dumbbell, so you can build a serious home gym in NZ without the clutter.

Who Is It For?

• Strength athletes and experienced lifters who need serious weight capacity
• Advanced home and garage gyms with limited space
• Personal trainers working with clients across a wide strength range
• Anyone who has outgrown lighter adjustable dumbbells

Looking for a Lighter Option?

The X SERIES range also includes the X SERIES Adjustable Dumbbell – 2kg to 32kg and the X SERIES Adjustable Dumbbell – 2kg to 16kg for beginners, toning and accessory work.

Frequently Asked Questions

What weights does the X SERIES 40kg adjustable dumbbell cover?
It adjusts from 2.5kg up to 40kg, ideal for heavy compound lifts as well as lighter accessory work.

Is it sold as a single dumbbell or a pair?
This listing is for one dumbbell. Add two to your cart for a matched pair.

Should I choose the 40kg or 32kg version?
If you're an experienced lifter or expect to press, row or lunge heavier than 32kg, the 40kg model gives you the most room to progress. The 32kg suits most intermediate home gym users.

Do you deliver across New Zealand?
Yes, we offer fast, reliable NZ-wide delivery.

What warranty does it come with?
The X SERIES 40kg adjustable dumbbell is backed by a 5-year warranty.