Leg Extension Accessory Black

Maniak Leg Curl/Extension Attachment – Train Quads and Hamstrings in One Module

The Maniak Fitness leg training attachment has been redesigned to deliver full functionality: you can now perform hamstring curls and quad extensions comfortably, safely and using free-weight resistance with Olympic plates. A must-have to turn your rack into a true leg training station.

What can you do with this attachment?

• Seated hamstring curl: Ideal for building strength and size in the hamstrings, without lumbar stress or the need for bulky machines.

• Quadriceps extension: Precisely targets the vastus medialis, intermedius and lateralis, essential for knee stability and athletic performance.

• Single-leg exercises: Perform unilateral variations to improve muscular balance and correct asymmetries.

• Isometric or partial-rep work: Perfect for rehabilitation or motor-control training.

Technical features

• Reinforced and adjustable design: Adjustable height (450–550 mm), suitable for different body types.

• Universal compatibility: Fits structures with 60x60 mm or 75x75 mm uprights and 25 mm holes.

• Loadable with Olympic plates: 50 mm sleeve with 230 mm loadable length, compatible with any standard Olympic plate.

• Padded lumbar support: Helps maintain a stable posture and protects the lower back.

• Firm, ergonomic lower roller: Ensures smooth flexion and extension without discomfort or slipping.

• Durable construction: Made from high-strength steel with a premium textured black finish.

Benefits of adding it to your training

• Increases muscular isolation during leg training.

• Improves performance in squats, jumps and running thanks to posterior-chain and core reinforcement.

• Reduces stress on the back or hips by providing support and postural control.

• Adds variety and intensity to your lower-body routines without taking up extra space.

Specifications

Frequently asked questions about the Maniak Leg Training Attachment

Which muscles can I train with this attachment?

Mainly the quadriceps (with leg extensions) and the hamstrings (with leg curls). You can also perform unilateral variations, control eccentric phases and even incorporate isometric work.

Do I need a specific machine to use it?

No. This attachment is designed to fit compatible structures such as racks and cages with 60x60 mm or 75x75 mm uprights and 25 mm holes. It does not require any additional machine.

Is it compatible with Olympic plates?

Yes. The loading sleeve is 50 mm in diameter and 230 mm in length, so you can use any standard Olympic plate.

How does it differ from a traditional hamstring or leg-extension machine?

This attachment offers a compact, efficient and versatile solution to train legs without taking up the footprint of traditional machines. Although it does not feature a selectorised weight stack or assisted lever, its free-weight resistance lets you train with full control and progression.

Can the height be adjusted?

Yes. The attachment features height adjustment between 450 and 550 mm, making it easy to adapt to different leg lengths and training positions.

Is it suitable for beginners?

Absolutely. Its stable design and padded backrest help maintain proper technique, reducing injury risk. And since it uses plates, you can start with very light loads.

Is it useful for rehabilitation or stability work?

Yes. You can use it for controlled eccentric work, partial movements or combine it with bands for low-impact exercises. It is ideal for corrective training or physical readaptation phases.

Turn your rack into a professional leg station

This attachment is the perfect solution for training quadriceps and hamstrings without investing in a standalone machine. Compatible, solid and functional, it is ideal for home gyms, boxes and fitness centres looking to enhance leg training without sacrificing space.

Maniak your routine. Maniak your legs.