A250 Leg Extension
Models 1121 and 1122
The quadriceps are one of the most powerful muscle groups we have. They are responsible for much of our stability and mobility. This Leg Extension features a seat that adjusts forward and back without changing its tilt for maximum comfort. An optional range‑limiting device (Model 1122) lets you set the starting and ending points in the range of motion. The perfect match to the A250 Leg Curl, the A250 Leg Extension gives you a smooth resistance that protects the body from shock loading.
The quadriceps are one of the most powerful muscle groups we have. They are responsible for much of our stability and mobility. This Leg Extension features a seat that adjusts forward and back without changing its tilt for maximum comfort. An optional range‑limiting device (Model 1122) lets you set the starting and ending points in the range of motion. The perfect match to the A250 Leg Curl, the A250 Leg Extension gives you a smooth resistance that protects the body from shock loading.
Features you won’t find in conventional machines
Bilateral movement to train muscle symmetry
Cost‑effective way to provide strength training options
Large digital display that shows resistance, sets, repetitions, and peak power
Thumb buttons let you change resistance without changing position — even during exercise
Fast, easy, and precise eccentric overloading
Change resistance in increments as small as one pound
Industry-leading lifespan and uptime for years of use
Unique versatility; five ways to train instead of only one
Fully adjustable to accommodate a wide range of users
Thick base for added stability
Bilateral movement to train muscle symmetry
Cost‑effective way to provide strength training options
Large digital display that shows resistance, sets, repetitions, and peak power
Thumb buttons let you change resistance without changing position — even during exercise
Fast, easy, and precise eccentric overloading
Change resistance in increments as small as one pound
Industry-leading lifespan and uptime for years of use
Unique versatility; five ways to train instead of only one
Fully adjustable to accommodate a wide range of users
Thick base for added stability
COMMERCIAL-GRADE WARRANTY
We proudly stand behind the workmanship of our machines
MADE IN THE USA
with domestically and globally sourced materials
Why choose the A250 Leg Extension?
Control Resistance With Digital Convenience And Precision
THUMB BUTTON CONTROLS
Thumb button controls on handgrips let you change resistance without changing position.
Change resistance during exercise without stopping.
Convenient resistance controls are perfect for quick, precise, eccentric overloading.
POWER DISPLAY
Get instant feedback for testing and evaluation. The Power Display shows:
- Resistance level in (lbs. or kg)
- Sets
- Repetitions
- Peak power produced on each repetition
- Percentage of peak power
- Adjustment positions
Six-repetition Peak Power test calculates the resistance at which you achieve maximum power. Clear, one-inch numbers can be seen from a distance.
CHIP SYSTEM AND INTEGRATED TECHNOLOGY
Your electric workout card remembers and displays your previous workout:
- Resistance
- Sets
- Reps
- Adjustment Positions
Use Keiser Chip System with the Keiser Integrated Technology to download your workout on your phone, tablet, or computer.
Clear Advantages for your Business
Older Adult
Keiser works for every level of fitness and will make your facility stand out.
Learn moreQuestions? Talk to a performance coach.
Mac Calloway,
Human Performance and Education Specialist
Our pros know what you need and can explain our strength machines in terms that make sense to professionals like you (USA and Canada only).
Set up a ConversationTRY KEISER STRENGTH FOR YOURSELF
One of our Demo Vans will bring two of our strength machines to any location in Mainland UK and Scottish Highlands. And we’ll bring other machines from our functional, racks, and cardio lines for you to try.
Specifications
Lightweight
Easy to move when you need to change your floorplan. Place machines in locations where weight may be a concern (mezzanines, cruise ships, etc.).
A) WIDTH: 44” / 1118 mm
B) HEIGHT: 45”/1143 MM
C) LENGTH: 46”/1169 MM
WEIGHT: 169 LBS/77 KG (Model 1121)
WEIGHT: 208 LBS/95 KG (Model 1122)
RESISTANCE: 0 – 246 LBS/0 – 112 KG
Get The Look You Need
STANDARD UPHOLSTERY COLORS
We offer a variety of upholstery color options — and our standard Raven Black painted frame — at no additional cost.
WE CAN MATCH YOUR REQUIREMENTS
Custom paint and upholstery colors are available to match the requirements of your brand or decor. And you can add custom graphics for a complete branded solution.
SEE HOW KEISER LOOKS IN YOUR SPACE
We’ll help you design your floor plan in the best layout. And our 3D renderings let you see how your space will look with new Keiser equipment. We’ll even include your equipment from other manufacturers. (USA and Canada only)