REP® x Dialed Motion Leg Developer Attachment

Meet the REP® x Dialed Motion Leg Developer Bench Attachment — a compact, cable retracting solution that turns your BlackWing™ or Nighthawk™ Adjustable Bench into a full lower-body training station for your home gym. Designed with Dialed Motion’s precision engineering and REP’s obsession with versatility, this attachment delivers three movements right out of the box: leg extension, leg curl, and prone leg curl. The integrated cam system, 19 arm adjustment settings, and 7 leg roller settings let you dial in your perfect fit, while the adjustable leg holder keeps you locked in for seated hamstring curls. Knurled touch points and multiple hand placement options give it that commercial-machine feel — without the commercial footprint. Whether you're training both legs or focusing on one leg at a time to iron out imbalances, this setup stays secure, consistent, and rock-solid under load.

Fitness Equipment Reimagined: 

What sets this exercise bench attachment apart is its cable retractor, allowing you to seamlessly connect to your weight stack and quickly stow the cable when not in use. Most machines stop at two movements — this one doesn’t. With the optional Preacher Pad and handle kit, this system expands beyond leg day into biceps and triceps upper-body isolation work , making it one of the best ways to get more out of a single exercise bench at home. From smooth cam-driven leg extension and leg curl work, to secure seated preacher curls and pushdowns, this is engineering that outworks the competition — built to evolve with your training.

Weight Bench Workout Versatility: 

Here are the movements you can do on the Dialed Motion Leg Developer Bench Attachment

• •Leg extension

• •Seated leg curl (aka hamstring curl)

• •Prone leg curl / lying leg curl

• •Optional (with Preacher Pad + handle kit): preacher curls

• •Optional (with Preacher Pad + handle kit): seated tricep pushdowns.

Weight Bench Compatibility at Launch:

• •REP BlackWing™
• •REP Nighthawk™

Planned Compatibility (Availability Timeline TBD):

• •Rogue Manta Ray (2" x 2" hitch)
• •Freak Athlete ABX (46mm hitch)
• •APEX Adjustable Bench (46mm hitch)

During checkout, you'll be able to select the qualified bench you'll be using. Your bench selection will determine the hitch, linkage arm, and linkage arm bracket included with your Leg Developer.

Compatibility with Benches Outside the Qualified List

Bench compatibility is determined by two main factors:

1. 1. The size of the bench attachment receiver port tube
2. 2. The availability mounting points on the base of the bench and their distance from the Leg Developer's leg

The Leg Developer may physically mount to additional benches with a compatible receiver port tube size. However, physical fit alone does not make a bench a qualified configuration. The linkage arm was added to meet ISO-level load safety factors and is required for REP's qualified 200lb load rating.

REP's Published 200lb load rating applies only to qualified bench configurations using the specified hitch, linkage arm, and linkage arm bench bracket. Configurations without the linkage arm, or with benches that have not been qualified by REP, have not been tested or assigned a load rating by REP.

Because bench designs vary significantly, it is not logistically feasible to develop and maintain linkage solutions for every bench on the market. REP plans to evaluate additional benches for qualified compatibility in the future.

Hitch Options

REP will offer two hitch sizes as part of the qualified bench packages:

• •2" x 2" hitch - for benches with a 2" x 2" receiver opening
• •46mm x 46mm hitch - for benches with a 46mm x 46mm receiver opening