Welcome to the comprehensive guide for the RitFit ASM2 Adjustable Integrated Leg Hold-Down Attachment. This guide is designed for home gym owners, specifically those utilizing the RitFit M2 model, who want to maximize the potential of their equipment. We will cover everything from the initial installation and safety checks to specific exercise applications and maintenance tips. Whether you are looking to stabilize your heavy lat pulldowns or expand your lower-body training repertoire, this guide serves as your roadmap.
The RitFit ASM2 Adjustable Integrated Leg Hold-Down Attachment is a multi-functional accessory designed to transform your existing Smith machine setup. Unlike standard leg rollers that serve a single purpose, this attachment features an integrated seat and hold-down system. It connects directly to the uprights of the ASM2, providing a stable anchor for cable exercises and acting as a utility bench for various other movements. Key functions include anchoring the legs during heavy lat pulldowns, supporting the body for rows, and enabling lower-body isolation movements.
Key Features & Benefits
Main Features
- Robust Construction: Built with high-quality Q235 square tubing, ensuring "unshakable strength" and stability during intense use.
- Premium Upholstery: Features durable lychee-pattern leather that offers lasting comfort and resistance to wear and tear.
- Adjustability: The height is adjustable from 15.6 to 18 inches, catering to users of different sizes. Additionally, the seat supports a 4-level adjustable angle to suit various exercise inclines.
- Load Capacity: Engineered to support up to 350 lbs, making it suitable for heavy lifting and weighted calisthenics.
- Quick-Release Mechanism: Designed for effortless installation and removal, allowing you to transition between exercises without wasting time.
User Benefits
- Enhanced Stability: The primary benefit is improved leverage. By locking your legs securely, you can lift heavier loads on pulldowns without your body lifting off the bench.
- Space Efficiency: This attachment consolidates multiple machines into one. It functions as a lat seat, a Nordic curl station, and a support for dumbbell work, saving valuable floor space.
- Versatility: Beyond back training, it unlocks exercises like Nordic curls, Bulgarian split squats, and ab workouts, making your ASM2 a true all-in-one station.
Compatibility & Prerequisites
Compatible Equipment
It is crucial to verify compatibility before installation. This attachment is specifically engineered for the RitFit M2 (ASM2) model. It is designed to fit uprights with dimensions of 60mm x 60mm x 1.8mm and requires a hole diameter of 1 inch. Attempting to use this on racks with different specifications may result in an insecure fit.
Tools & Parts Checklist
Because of the quick-release design, you generally do not need heavy tools for daily setup. However, for the initial assembly or adjustment of the pad mechanisms, ensure you have:
- The main attachment arm and seat assembly.
- Leg hold-down rollers/pads.
- Locking pins (usually included).
- Standard wrenches (if bolt tightening is required upon unboxing).
Safety Information
General Safety Warnings
Safety is paramount when suspending body weight or lifting heavy loads. Always ensure the attachment is fully locked into the uprights before sitting or applying force. Do not exceed the rated load capacity of 350 lbs. When performing exercises like Nordic curls, ensure your counterbalance is secure.
Pre-Use Inspection
Before every session, perform a quick visual check. Ensure the quick-release pins are fully engaged through the upright holes. Inspect the lychee-pattern leather for any deep scratches or tears, and verify that the padding is securely fastened to the metal frame.
Installation & Setup
Unboxing & Part Identification
Upon unboxing, identify the main seat structure, the roller pads, and the attachment bracket. Orient the bracket so that the locking mechanism faces the uprights of your ASM2.
Mounting to the ASM2
- Positioning: Align the attachment bracket with the desired holes on the ASM2 upright. For seated exercises, a lower position is typical; for chest-supported rows, a higher position may be required.
- Locking: Insert the quick-release pins through the bracket and the upright. Ensure the pin passes completely through to the other side or locks securely into place.
- Stability Check: Give the attachment a firm shake to ensure there is no play or wobble before loading it.
Adjusting the Height & Position

The attachment allows for height adjustments between 15.6 and 18 inches. Use the pop-pin or locking knob to slide the seat up or down to match your tibia length. The seat angle can also be adjusted to 4 different levels depending on whether you need a flat surface or an incline.
Initial Comfort & Fit Check
Sit on the attachment and secure your thighs under the rollers. The fit should be snug enough to prevent movement but not so tight that it cuts off circulation. Adjust the roller height until you find the "sweet spot" for your body type.
Using the Attachment: Exercise Applications
Upper Body Exercises
Lat Pulldowns
This is the primary function of the attachment. Adjust the seat so your thighs are securely pinned under the pads. This lock-in allows you to drive your elbows down with maximum force, isolating the lats effectively without using momentum.
Dumbbell-Supported Rows & Incline Presses
Utilize the 4-level adjustable angle of the seat to create a support station. You can lean against the pad for chest-supported bent-over rows to reduce lower back strain, or use it as a backrest for incline dumbbell presses.
Core & Stability Exercises
Sit-Ups and Ab Workouts
Hook your legs securely under the rollers and lie back (using a separate bench or the floor if the height permits) to perform anchored sit-ups. This isolates the abdominal wall and allows for increased repetition volume.
Lower Body & Auxiliary Uses
Nordic Curls
This challenging hamstring exercise is made easier with the leg hold-down. Kneel on a pad on the floor or a bench, hook your ankles under the rollers, and lower your torso slowly. The secure anchor point is essential for performing this movement safely.
Bulgarian Split Squats
Rest your non-working leg on the seat or roller pad. The comfortable padding protects your ankle and instep, allowing you to focus entirely on the quad and glute engagement of the working leg.
Adjustment Tips & Customization
Dialing in the Perfect Fit
Small adjustments make a big difference. If you are tall, use the higher height setting (near 18 inches) to avoid cramping your hips. If you have shorter legs, the 15.6-inch setting ensures your feet remain flat on the ground for stability.
Multi-User Households
For gyms used by multiple people, mark your preferred hole settings with a small piece of tape or a marker. The quick-release mechanism shines here, allowing you to swap positions in seconds between partners.
Maintenance & Care
Routine Checks
Inspect the Q235 square tubing periodically for any signs of stress, although this industrial-grade steel is highly durable. Check that the adjustable knobs and pins are lubricated and move freely.
Cleaning & Pad Care
Wipe down the lychee-pattern leather after workouts to remove sweat and bacteria. Use a mild soap and water solution; avoid harsh chemicals that might dry out or crack the material.
Warranty & Support
The RitFit attachment comes with a 1-year warranty covering defects in materials and workmanship. If you notice any manufacturing issues, contact RitFit customer support immediately for a resolution.
Troubleshooting
Common Issues & Fixes
- Attachment Wobble: Usually caused by a pin not being fully inserted. Remove and re-insert the pin, ensuring it clicks into place.
- Pad Too Loose: Adjust the height setting down one notch to ensure tight contact with the thighs.
Compatibility Issues
If the attachment does not fit your rack, double-check the upright dimensions. Remember, this product is designed for 60x60mm uprights with 1-inch holes. It is not universal for all rack sizes.
FAQs
Q: Is this attachment compatible with older RitFit models?
A: It is specifically optimized for the M2 (ASM2). Check your upright size (60mm x 60mm) and hole diameter (1 inch) to confirm fitment for other versions.
Q: What is the maximum user weight?
A: The attachment has a load capacity of 350 lbs. Ensure the combined weight of the user and any active load does not exceed this limit during supported exercises.
Q: Can I leave it installed permanently?
A: Yes, however, the quick-release design allows you to remove it easily to free up space inside the rack for squats or deadlifts.
Summary & Best Practices
Key Takeaways
The RitFit ASM2 Adjustable Integrated Leg Hold-Down Attachment is more than just a foam roller; it is a versatile upgrade that adds a seat, a stability anchor, and a support bench to your home gym. With a 350 lb capacity and premium construction, it is built to last.
Quick-Start Setup Checklist
- Identify: Locate the correct upright holes for your height.
- Mount: Insert the bracket and secure with quick-release pins.
- Adjust: Set the seat height (15.6"–18") and angle.
- Test: Apply body weight to ensure stability.
- Train: Begin your workout with confidence.
















