---
product_id: 164969131
title: "Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training"
brand: "bowflex"
price: "NZ$1157"
currency: NZD
in_stock: true
reviews_count: 13
category: "Bowflex"
url: https://www.desertcart.nz/products/164969131-bowflex-selecttech-series-adjustable-dumbbells-and-kettlebell-52-90-552i
store_origin: NZ
region: New Zealand
---

# Includes JRNY app trial with trainer-led classes 6 adjustable weight settings (3.5-18 kg) 28mm ergonomic handle for superior grip Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training

**Brand:** bowflex
**Price:** NZ$1157
**Availability:** ✅ In Stock

## Summary

> 🏋️‍♂️ Dial Up Your Strength, Not Your Clutter!

## Quick Answers

- **What is this?** Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training by bowflex
- **How much does it cost?** NZ$1157 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/164969131-bowflex-selecttech-series-adjustable-dumbbells-and-kettlebell-52-90-552i)

## Best For

- bowflex enthusiasts

## Why This Product

- Trusted bowflex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from cast iron and reinforced plastic with a 2-year warranty for peace of mind.
- • **Ergonomic Grip:** Comfort meets durability with a 28mm handle that fits your hand like a glove.
- • **Compact Powerhouse:** Replace 6 kettlebells with one sleek, space-saving design.
- • **Precision Weight Control:** Dial in your perfect resistance with smooth, incremental adjustments.
- • **Smart Training Companion:** Unlock expert-led workouts via the JRNY app—strength, yoga, Pilates & more.

## Overview

The Bowflex SelectTech Kettlebell 840 is a versatile, adjustable kettlebell offering six weight increments from 3.5 to 18 kg. Designed with an ergonomic 28mm handle for comfortable grip, it replaces multiple kettlebells to save space. Included is a free trial of the JRNY app, providing access to trainer-led classes across strength, core, yoga, and Pilates. Built with durable cast iron and plastic, it comes with a 2-year manufacturer warranty, making it an ideal smart home gym solution for progressive strength training.

## Description

From the manufacturer Bowflex SelectTech Kettlebell 840 Bowflex SelectTech Weights SelectTech Kettlebell 840 (NEW) SelectTech 52 SelectTech 552i (NEW) SelectTech 90 SelectTech 1090i Bowflex Rebrand Launch

Review: Bowflex Selectech adjustable Kettlebell. - Amazing piece of kit - What a brilliant piece of kit not only because it’s very well made but being adjustable takes up virtually no space which is ideal for my home gym. Also the handle isn’t too thick unlike most kettlebells meaning exercises such as upright rows, shoulder workouts etc you are able to grip it with complete comfort. Excellent value for money as it’s equivalent to having 6 kettlebells.
Review: Versatile without breaking stride - Brilliant piece of kit, Versatile, safe, flexible and easy to weight-adjust for various exercises without breaking stride in your workout

## Features

- Warning:Not suitable for children under 14 years. For use under adult supervision
- Warning:Only for domestic use
- Warning:To be used under the direct supervision of an adult
- Accomplish full-body fitness results with the versatile home kettlebell weight that allows you to customize your resistance with a turn of a dial
- Single weight includes 3.5, 5.5, 9, 11, 16, and 18 kilograms to accommodate lifters at every level
- Designed with an ergonomic handle to add durability and comforting molding around the metal plates
- Adjust in small increments with a weight selection dial to gradually increase your strength while performing a wide variety of exercises
- Free JRNY trial included for new members (iOS 14.0/Android 9 or later required). The JRNY app offers trainer led classes for Strength, Core, Yoga and Pilates.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07X64MXBS |
| Best Sellers Rank | 9,284 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 109 in Dumbbells |
| Brand | Bowflex |
| Brand Name | Bowflex |
| Colour | Black / Red |
| Customer Reviews | 4.7 out of 5 stars 7,452 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Global Trade Identification Number | 00708447912961 |
| Handle Diameter | 28 mm |
| Handle Material | Rubber, Metal |
| Included Components | Instructions for use:, Kettlebell |
| Item Dimensions L x W | 22.4L x 17.8W centimetres |
| Item Type Name | Kettlebell SelectTech |
| Item Weight | 40 Pounds |
| Item weight | 40 Pounds |
| Manufacturer | Johnson Health Tech |
| Material | Cast Iron , Plastic |
| Model Number | 100790 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Adjustable, Ergonomic |
| Part Number | 100790 |
| Product Warranty | 2 Year Manufacturer Guarantee |
| Product dimensions | 22.4L x 17.8W centimetres |
| Set Name | SelecTech Adjustable Kettlebell |
| Special feature | Adjustable , Ergonomic |
| Style | KB840 (3.5 - 18 kg) Single Kettlebell |
| Target Use Body Part | Arm |
| UPC | 708447912961 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Bowflex
- **Colour:** Black / Red
- **Item weight:** 18.14 kg
- **Material:** Cast Iron, Plastic
- **Special feature:** Adjustable, Ergonomic

## Images

![Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training - Image 1](https://m.media-amazon.com/images/I/61GhgyYpcRL.jpg)
![Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training - Image 2](https://m.media-amazon.com/images/I/71Gz26nOM4L.jpg)
![Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training - Image 3](https://m.media-amazon.com/images/I/71JMWOvcm1L.jpg)
![Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training - Image 4](https://m.media-amazon.com/images/I/71uW-UnVaqL.jpg)
![Bowflex SelectTech Series – Adjustable Dumbbells & Kettlebell 52, 90, 552i, 1090i, & 840, Smart, Space-Saving Home Gym Strength Training - Image 5](https://m.media-amazon.com/images/I/71nIj9KA24L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bowflex Selectech adjustable Kettlebell. - Amazing piece of kit
*by A***R on 12 March 2025*

What a brilliant piece of kit not only because it’s very well made but being adjustable takes up virtually no space which is ideal for my home gym. Also the handle isn’t too thick unlike most kettlebells meaning exercises such as upright rows, shoulder workouts etc you are able to grip it with complete comfort. Excellent value for money as it’s equivalent to having 6 kettlebells.

### ⭐⭐⭐⭐⭐ Versatile without breaking stride
*by D***N on 27 January 2026*

Brilliant piece of kit, Versatile, safe, flexible and easy to weight-adjust for various exercises without breaking stride in your workout

### ⭐⭐⭐⭐⭐ Good value, not best handle
*by J***E on 14 March 2023*

I actually have two of these now, bought a second so I could train with two or if I have a training partner round. Both times I brought one it was on sale. Design: the shell for this product seems to be longer in drop than a standard kettle bell, the hand is a lot wider so makes some movements awkward. Reliability: I've never had any issues changing the weight value, it is smooth and works with ease. When doing kettlebell swings I worry the weight will come flying out but in over a year of use it never has so seems fairly secure. Value: Very very good for saving space, and providing a good variety of weights at a lower price point then buying them separately. Increments do not rise in fixed values which can annoying, for instance the sequence goes 11kg to 16kg then 18kg. Overall: Very Good value when I purchased at around £100each time, range of weights is good and system is easy to use. Only real issue is the width of handle is longer than standard Kettle bell which can change the why some movements may be done but any change should be only slight. I do use modular dumbbells (nuobell) and bar bell (bow flex) for training the majority of the time, but the kettle bell was the modular system I first purchased and it still comes in very handy, hence I brought a second.

## Frequently Bought Together

- BowFlex SelectTech 840 Adjustable Kettlebell
- Bowflex SelectTech 552 Adjustable Dumbbells
- ProsourceFit Puzzle Exercise Mat ½ in, EVA Interlocking Foam Floor Tiles for Home Gym, Mat for Home Workout Equipment, Floor Padding for Kids, Cream, 24 in x 24 in x ½ in, 24 Sq Ft - 6 Tiles

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-08-07*