Site Icon ATX-BCO-680 Seated Leg Extension Leg Curl Review

14/09/2026
A muscular man in black shorts flexes in a gym. A screen behind him displays World Record for Stephen Hoffman, with a 204 kg deadlift. Nearby are chairs, a wall clock, and event banners, while a Seated Leg Extension Leg Curl Review poster adds to the athletic atmosphere.

Big thanks do Big Dave Napper for sending in his Seated Leg Extension Leg Curl review.

We recently purchased two of these ATX Seated Leg Extension Leg Curl Machines for BNB, and here is our review. They were replacing an older model that had served us extremely well but had since been discontinued.

The decision to purchase two wasn’t simply about upgrading our equipment — we needed to eliminate a bottleneck during peak hours. By having one machine dedicated to quads and one dedicated to hamstrings. Having used the first machine, I had no hesitation in purchasing a second.

Here is Big Dave demonstrating text book form on his old ATX-BCO-770 Leg Extension Curl Machine

Seated Leg Extension Leg Curl Adustability

The new model is a significant improvement, particularly when it comes to adjustability. With multiple adjustment points, members of different heights and body proportions can get the machine properly fitted to them and find a much better individual setup. The increased range of motion and exceptionally smooth operation also make both the leg extension and seated leg curl excellent exercises.

For a busy commercial gym, equipment needs to be able to handle constant use while still providing a quality training experience for members. These machines tick both boxes. They feel solid, operate smoothly and allow us to provide dedicated quad and hamstring isolation without compromising on setup or movement quality.

A muscular man in a gym sits on a padded platform with arms crossed and legs wide apart, perhaps fresh from his latest Seated Leg Extension Leg Curl session. Behind him are gym equipment, a digital clock, a large whiteboard, and a TV displaying a weightlifter in action.
Big Dave is attempting to do a Jean Claude Van Damme splits style photo. But it looks like extreme “man spreading”.

As with the other ATX equipment we’ve purchased from Sam’s Fitness, the quality has been excellent. I know these machines will get plenty of use at BNB for years to come.

Great equipment, excellent value and exactly what we needed for our gym.

If it helps with customers, as someone who weighs 120kg and squats 250+kg and deadlifts 300+kg, I’ve found 65kg on the hammy curls for 8-12 reps is tough, and same deal with 115kg on leg extension.

This is with full ROM, controlled eccentrics. Most of the BNB crew use 20-40kg for hammy curls and 40-60kg for leg extensions, when performing proper reps.

A muscular man in black shorts flexes in a gym. A screen behind him displays World Record for Stephen Hoffman, with a 204 kg deadlift. Nearby are chairs, a wall clock, and event banners, while a Seated Leg Extension Leg Curl Review poster adds to the athletic atmosphere.
What makes Big Dave a legend is his willingness to get his gear off to show his appreciation. Which is of course well received by the boys at Sam’s Fitness 😘