Fantastic communication, super fast delivery, A+++ product. Thank you
Perfect first gloves for my kids to start learning boxing. 🥊 Easy to get on and off, they love them .
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HS21
4 x
$597.50 AUD
From
$10
4 x
$597.50 AUD
Same day dispatch on orders before 11am. Over 500 depot collection spots Australia wide
Get your money back if you are not entirely happy, within 14 days
Excellent customer service, live support 24/7. Australian based support
Afterpay, Paypal & Zip Pay AvailableThe Lower Back, Trained Properly | 96kg Weight Stack | 10-Year Frame Warranty
Fully Custom Models Made to Order | Lead Time 8-12 Weeks | Custom Frame & Upholstery Colours Available
Commercial buyers: contact us for fit-out pricing, bulk rates and current lead times.
The HS-X Back Extension gives the most neglected muscle group in the gym its own loaded station: extend back against the 96kg pin stack and the spinal erectors - the muscles that stabilise every squat, deadlift and carry, and guard against everyday back pain - finally train with real, progressive resistance.
The seated, supported position and guided path make it one of the safest ways to load the lower back: no balance demand, no hinge to coach, just a controlled extension through a full range. Adjustable settings align users of every size in seconds, from rehab-light first sessions to heavy strength work.
Built on 11-gauge carbon steel at 205kg with polyurethane pads and premium PU leather, it's the station that turns "I should train my lower back" into something members actually do.
| Model | HS21 - HS-X Series |
| Movement | Seated back extension |
| Primary Muscles | Spinal erectors; glutes and hamstrings secondary |
| Resistance | Pin loaded, 96kg + 4.6kg weight stack (upgradeable to 117kg or 138kg) |
| Frame | 11-gauge carbon steel, powder-coated |
| Padding | Polyurethane foam, premium PU leather |
| Machine Weight | Approx. 205kg |
| Dimensions (L x W x H) | 1160 x 1000 x 1400mm |
| Shipping Dimensions | 1520 x 820 x 570mm |
| Frame | 10 years |
| Guide Rods & Bearings | 3 years |
| Upholstery & Parts | 12 months |
Why train the lower back on a machine?
Because the free-weight alternatives - good mornings, hyperextensions, deadlifts - all demand technique most members don't have. The seated, guided extension removes the hinge and the balance demand, so the erectors get loaded safely from session one.
What muscles does it work?
The spinal erectors primarily - the columns of muscle either side of the spine - with the glutes and hamstrings assisting. Strong erectors stabilise every lift and are one of the best insurances against everyday back pain.
Is it suitable for beginners and rehab clients?
Very - the movement is supported, guided and scales from a few kilograms upward. As always, anyone training around an injury should follow their practitioner's guidance.
Can I upgrade the weight stack?
Yes - on made-to-order builds the 96kg + 4.6kg stack can be increased to 117kg + 4.6kg or 138kg + 4.6kg at $10 per extra kilogram. Get in touch to spec it.
Can I customise the frame and upholstery?
Yes - made-to-order builds are available in 16 frame colours and 12 upholstery colours on an 8-12 week lead time. See the full colour chart below.
Do you offer delivery and installation?
Yes - Australia-wide delivery, with professional installation through our own technician team in Sydney. Contact us to discuss freight access and site requirements.

Delivery & Installation
Australia-wide delivery on a 205kg commercial machine, with professional installation available through our own technician team in Sydney. Contact us to discuss freight access and site requirements.
Commercial Fit-Outs & Bulk Orders
Outfitting a gym, studio or facility? Contact us for our full commercial catalogue, bulk pricing and a free consultation.
Shop More: HS-X Series | Compare: HS-X Crunch / Lower Back Dual
Complete Your Setup: Gym Flooring | Benches
Ready To Ship: In Stock Pin Loaded Machines
Browse Full Range: Commercial Gym Equipment
Strong erectors carry everything - give them their own stack.

RELOAD By Fitness Hero
Commercial Grade custom made to order products
You can now design your own custom made equipment to suit your own requirements. Simply let us know the colour or finish you would like on the products and we will do the rest.
Once an order has been placed, your equipment will be manufactured upon request. This process generally takes around 14 days depending on the size of each product.
Once the production is finished, it can take 4-6 weeks to be delivered to Sydney. Once it has arrived in our warehouse, we will arrange shipment to your location. Prior arrangement can also be made to ship items direct to you.
Estimated start to finish process: 8 - 12 weeks
Custom Design
Some of our ranges are fully colour customisable to suit your needs - 16 frame colours and 12 upholstery colours. Just get in touch when ordering to let us know which colour you require and we will do the rest.
Weight stack upgrades: the 96kg + 4.6kg stack can be increased to 117kg + 4.6kg or 138kg + 4.6kg at $10 per extra kilogram - get in touch to spec it.
Our commercial grade equipment also comes with a 10-year warranty!
Please reach out to our customer service if you have any questions or require some advice & one of our friendly staff members will be happy to help you.

Get a sneak peek on upcoming promos and get $20 off your first order!
* Please Note: Min Spend $150
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Fantastic communication, super fast delivery, A+++ product. Thank you
Perfect first gloves for my kids to start learning boxing. 🥊 Easy to get on and off, they love them .
Good quality and easy to use