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REP Fitness

AB-4100 Adjustable Weight Bench

AB-4100 Adjustable Weight Bench

Regular price $649.00
Regular price Sale price $649.00

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If you're looking to maximise space without compromising your workout, this is the bench for you! The AB-4100 Adjustable Weight Bench marries form and function with an expanded range of incline and seat positions, upgraded handle design, and black zinc hardware. The ladder-style adjustment system is quick and easy to adjust. At only 38.55kgs, this lightweight and maneuverable bench includes a built-in upright storage post with rubber coating to protect your floors and add extra stability. Available in Metallic Black or Red.


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The AB-4100 Adjustable Weight Bench is everything you need in a trusted workout bench. With the choice between a stylish Metallic Black or Red, you’ll love the look and feel of this piece in your gym.

  • 7 Back Pad (0 to 85 degrees) and 3 Seat angles (0 to 20 degrees)
  • Vinyl cushion is textured and grippy so you won’t slide out of position
  • Squared off 30.48cm (12”) back pad offers ample support and cushioning
  • Closed ladder style adjustment for quick and easy transitions


This adjustable bench includes a handy vertical storage post with rubber coating to protect floors and add extra stability.


At only 38.55kgs (85lbs) this bench is lightweight and easy to manoeuvre around your home gym or fitness facility, especially if you’re tight on space.


The AB-4100 was designed to meet IPF Height Standards for the athlete looking to stay consistent with their training tools.


  • Usage: Full Commercial
  • Materials: 7- & 14-Gauge Steel
  • Important Specs:
    • Back Pad Angles: 0, 15, 30, 45, 60, 75, 85
    • Seat Pad Angles: 0, 10, 20
    • Back Pad Length: 91.44cm / 36"
    • Pad Width: 30.48cm / 12"
    • Seat Pad Length: 33.02cm / 13"
    • Pad Gap: 3.98cm / 1.57"
    • Tolerance 3%
  • Product Weight: 38.55kg / 85lbs
  • Weight Capacity: 317kg / 700lbs
  • Dimensions: 51.56 (W) x 130.30 (L) x 43.18 (H) cm
  • Warranty:
    • Frame: Lifetime
    • Parts: 1 year
    • Upholstery: 30 days


SKU: AB-4100-MBLK , AB-4100-RED , Brand: REP Fitness

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Customer Reviews

Based on 36 reviews
Jeff X
REP Fitness AB-4100 Adjustable Weight Bench

Pretty seamless assembly and super good quality bench - especially at the price point. Better quality and materials than my other benches (force USA) and stores super easily without requiring much strength to lift it between vertical and horizontal. Main advantage of this bench is that it is super maneuverable due to its relatively light weight!

Hi Jeff,

Thank you for sharing your input here, we appreciate it! We're delighted to hear we met your expectations in terms of quality and reliability of our product. If you are looking to add more equipment to your gym set up, feel free to reach out! We have a team here who are knowledgeable and will help you get the equipment you are looking for.

Happy training!
GAF Team

Heavy but Light

Solidly built that can last for years of heavy use…. Heavy but light and easy to move thanks to its wheels and handle…. Upright storage is a breeze when not in use which in turn maximises the space we need for other workouts…. And of course the red breaks the monotony of our home gym….

Hi A.I.,

Your feedback is invaluable, and we are pleased to know that the AB-4100 has met your expectations. We hope it continues to serve you well in your fitness journey!

Happy training!
GAF Team

Solid Bench!

Simple to construct, solid bench, worth every cent!

Hi Chris,

Thank you for your feedback! It makes us happy hearing your satisfaction. Thanks again for choosing Gym and Fitness as your supplier for your fitness needs, we hope to see you again :)

Happy training!
GAF Team

REP Fitness AB-4100

The bench is better than expected. Having typically used rogue gear, this was my first experience with rep and for the price this is a quality product - stable/comfortable to use and easy to manoeuvre and store standing up. Less seat angles than some other benches but more than enough for the home gym. Padding and upholstery appears to be good quality also.
Gym and fitness provided very good service. I pre-ordered the bench prior to stock arriving and customer service provided regular updates on delivery timeframes as well as prompt responses to queries.

Hi Jason,

Thank you for your detailed feedback, we really appreciate it! We strive to provide a seamless and enjoyable experience for our customers, and we're delighted to hear your feedback. Thanks again for choosing Gym and Fitness, and we appreciate your kind words about our products and services.

Happy training!
GAF Team


wobbles. If only the front leg was a bit wider

Hi Tuan,

Thank you for your feedback. We appreciate your input, this will help us improve our products to satisfy our customers. If you ever need assistance, please feel free to reach out to our customer service and we'll be happy to assist you.

Happy training!
GAF Team