Quick Summary
This leg extension and leg curl attachment is made for uprights with 18 mm through-holes and uses M16 mounting bolts with a 16 mm diameter. It works with 2-inch 5 cm weight plates only and has a maximum weight capacity of 265 lb. The attachment also has 8 adjustment settings and comes with thickened padding on the contact rollers.
The design is detachable and intended for leg training, with a mounting bracket that is compatible with 3 x 3 inch square tubing. If rack fit, plate size or hole diameter matter for your setup, those are the main checks to make before choosing an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Leg extension and leg curl attachment for rack-based training. |
| Hole diameter | For uprights with 18 mm through-holes, so rack compatibility needs checking. |
| Mounting bolts | Uses M16 mounting bolts with a 16 mm diameter. |
| Weight plate compatibility | Works with 2-inch 5 cm weight plates only. |
| Maximum load | 265 lb maximum weight capacity. |
| Adjustment settings | 8 adjustment settings for configuring the attachment position. |
| Contact rollers | Thickened padding on the contact rollers. |
| Mounting bracket | Includes a bracket compatible with 3 x 3 inch square tubing. |
What to Compare Before Buying
- Rack fit: Check the 18 mm through-hole requirement against your uprights before ordering.
- Plate size: This model is for 2-inch 5 cm plates only, so it is not a match for 1-inch standard plates.
- Load limit: Compare the 265 lb maximum capacity with the intended training load.
- Adjustment range: The 8 settings help with positioning, so confirm they suit your setup and training position.
- Mounting format: The included bracket is made for 3 x 3 inch square tubing, which matters if your rack uses a different profile.
Compatibility, Size and Fit
The key compatibility points are the 18 mm through-holes, the M16 mounting bolts, the 2-inch 5 cm plate requirement and the 3 x 3 inch square tubing bracket. Those are the main measurements to check against your rack and plates before buying.
The contact rollers are described as 38 cm in diameter. If space around your rack matters, allow for the overall footprint of the attachment and the room needed to move the rollers through their working range.
What Else You May Need
You will need compatible 2-inch weight plates for use with this attachment. Make sure your rack or uprights match the stated hole diameter and mounting format as well.
Before You Decide
Confirm the 18 mm through-hole fit, the 2-inch plate requirement and the 3 x 3 inch bracket before choosing an offer. The 265 lb load limit and 8 adjustment settings are important if you are comparing it with other rack attachments.
