Reimagine your strength workout with the Spirit Fitness i-Strength CSI-LELC Leg Extension/Leg Curl. The advanced electronic resistance and intelligent software deliver a next-generation training experience. Plus, 4 dynamic training modes—Pure, Eccentric, Isokinetic, and Elastic—provide variety and drive faster results. A resistance range of 18 to 205 lbs supports effective training for users of all abilities.
The Leg Extension and Leg Curl machine delivers versatile lower-body training by targeting opposing muscle groups—the quadriceps and hamstrings. Exercises can be easily switched and adjusted from a seated position, providing maximum convenience. Its optimized axis of rotation ensures smooth, natural movement for both extensions and curls. The padded, adjustable seat provides ergonomic support, lasting comfort, and easy maintenance. Constructed with a heavy-gauge steel frame and commercial-grade components, the machine is built for durability and reliable, long-term performance.
- Advanced electronic resistance and intelligent software deliver a next-generation training experience
- 4 dynamic training modes—Pure, Eccentric, Isokinetic, and Elastic—provide variety and drive faster results
- Effectively target both quadriceps and hamstrings
- Seamlessly transition between exercises while seated
- Axis of rotation engineered for a natural feel
- Intuitive touchscreen console allows effortless adjustments and real-time performance feedback
STRENGTH BUILT FOR EVERY BODY
- Personalized Comfort – A padded, adjustable seat helps ensure proper position and comfort for safe, effective training.
- Inclusive by Design – Four training modes and a 18–205 lb electronic resistance range suit users of all abilities.
- Smart Technology – Touchscreen console and built-in Wi-Fi deliver real-time feedback and seamless updates.
i-STRENGTH
The Spirit Fitness i-STRENGTH line brings next-generation technology to commercial strength equipment, combining advanced electronic resistance with intelligent software to deliver a training experience unlike anything before it. Four dynamic training modes—Pure, Eccentric, Isokinetic, and Elastic—give users the variety they need to break plateaus and achieve faster results, whether they're rehabilitating, building muscle, or pushing peak performance.
SPECIFICATIONS
WARRANTY
Extended parts and labor Protection Plans available.
SHIPPING & STORE PICK UP
Free in-store pick up at our Pennsylvania locations. We ship with USPS, UPS or one of our various freight common carriers depending on size and weight. Free or fee based shipping only applies to the 48 continental states
EXTENDED PROTECTION
Keep your fitness goals on track with our Extended Protection Plans that provides comprehensive coverage beyond the standard manufacturer’s warranty. Enjoy worry-free workouts knowing your equipment is covered.
DELIVERY & ASSEMBLY
Local inside delivery, assembly and equipment removal options available. Our professional installation team will ensure your project is completed on-time, assembled and tested for safety, and is trouble free.
ABOUT FITNESS EXCHANGE
Founded in 1997, our company is a proud, locally owned and operated business. Our founder, Tom, had a deep passion for fitness equipment and noticed a gap in the local market. This realization led him to open his first shop in Conshohocken.
Fifteen years later, with his children grown, Tom immersed himself further into the business and expanded to the Lehigh Valley with a second storefront. He also ventured into commercial sales, providing a comprehensive, full-service experience to local gyms, schools, residential complexes, hotels, and more. This expansion established us as the go-to solution for fitness center needs. Over the past 25+ years, we have cherished becoming an integral part of the community in both Philadelphia and the Lehigh Valley.