MOTV8 Omnibell 1180S Review: Fast-Adjusting Dumbbells with One Big Question Mark
This product was tested in house by Michael at The Jungle Gym Reviews.
The MOTV8 Omnibell 1180S is a fast-adjusting plate-loaded dumbbell that goes from 11 to 80 lbs per hand using a twist-and-lock tab system. It adjusts in about 2-3 seconds, feels reasonably balanced in hand, and costs less than most competitors in this weight range. The big question mark is long-term durability, the locking mechanism uses plastic tabs, and if you drop these or are rough with them, those tabs can break. MOTV8 has been good about sending replacements, but it is something you need to understand before buying. If you treat them carefully and value fast adjustment speed above all else, these are a solid option. If you want indestructible, look elsewhere.
Quick Takeaway
The MOTV8 Omnibell 1180S gives you 11 to 80 lbs per hand with fast twist-lock adjustment for under $500 (for the pair). They feel balanced, adjust quickly, and look nice with multiple colorway options. The tradeoff is durability, the plastic locking tabs are the weak point and can break if dropped or abused. MOTV8 has good customer service and sends replacement parts, but you need to be careful with these. Best for someone who wants fast adjustment speed, will not drop them, and is okay with the possibility of replacing a clip here and there over time.
Quick Specs
Price: ~$450-500 (pair, Elite USA 90 version)
Weight Range: 11 to 80 lbs per dumbbell
Adjustment: Twist-lock tab system (~2-3 seconds)
Increments: 5 lb increments [VERIFY exact increments]
Handle: Fixed center handle with rotating end caps
Plates: Multiple plates that slide on and lock via plastic tabs
Colorways: Multiple options (Patriot, etc.)
Also Available: 70 lb version
Where to Buy
You can check the current price directly through MOTV8 below (Use code JUNGLEGYM for 10% off):
My Real-World Experience
I have been using the MOTV8 Omnibells for a while now and my overall impression is positive with one major caveat. The adjustment speed is genuinely fast — twist the end cap, slide plates on or off, twist to lock. It takes about 2-3 seconds per side, which is faster than Ironmaster (screw-on) and comparable to Powerblocks (selector pin). For supersets or drop sets where you need to change weight quickly, these deliver.
The feel in hand is good. They are more balanced than the Bolt Fitness version I reviewed previously. There is a slight awareness that the weight distribution is not identical to a fixed dumbbell, you can feel it slightly during curls, but it is not like you are fighting against twisting or gravity pulling one end down. For pressing, rows, lateral raises, and most movements, they feel like normal dumbbells.
Adjustment Speed and Mechanism
The twist-lock system works by rotating the end cap, which engages or disengages plastic tabs that hold the plates in place. When the tabs are engaged, the plates are locked and cannot slide off. When you twist to disengage, you can add or remove plates freely. It is intuitive after the first few uses and becomes second nature quickly.
The plates themselves have manufacturing tolerances between them, there is a small amount of play so they can slide and adjust. This means you get a slight rattle when the dumbbell is loaded, especially at higher weights. This is normal for any adjustable dumbbell with stacked plates (Powerblocks rattle too). It never felt cheap or like there was too much movement, just the normal sound of plates sitting together with clearance.
The Durability Question
This is the elephant in the room. The locking tabs are plastic. If you drop these dumbbells, slam them down hard, or are generally rough with them, those tabs can crack or break. This is not a theoretical concern, it has happened to users, and MOTV8 acknowledges it by proactively sending replacement clips.
To their credit, MOTV8's customer service has been responsive. They send replacement parts without much hassle. But the fact that you might need to replace clips over time is something you need to factor into your decision. If you are someone who drops dumbbells at the top of a set, slams them together during presses, or generally treats equipment roughly, these are not for you.
If you are careful, set them down controlled, do not drop from height, do not slam, they hold up fine. I have not broken any tabs during my testing, but I am also deliberate about how I handle adjustable dumbbells in general.
Comparisons / Alternatives
Powerblocks: More durable (metal construction), selector pin adjustment is similarly fast. The tradeoff is that Powerblocks feel unbalanced — the weight distribution is uneven because of the nesting block design. The Omnibells feel more like a traditional dumbbell shape. Powerblocks are also pretty much indestructible.
REP Pepin Adjustable Dumbbells: All-metal construction, more expensive, very durable. Slower to adjust than the Omnibells. A good option if durability is your top priority and you do not mind slower weight changes.
Ironmaster Adjustable Dumbbells: The gold standard for durability. Screw-on locking system means zero plate movement and you can literally throw them down stairs. Much slower to adjust (15-20 seconds per change). More expensive. If you want ultimate durability and do not care about speed, Ironmaster wins.
Bolt Fitness (same style): Similar twist-lock mechanism from a different brand. In my experience, the Omnibells feel more balanced and better built than the Bolt Fitness version.
Fixed Dumbbells: Obviously the best feel and durability, but cost thousands for a full set and take up massive space. Adjustables exist to solve that problem.
Tradeoffs
Plastic locking tabs. The weak point of the design. Can break if dropped or abused. Replaceable, but still a concern.
Not for dropping. If you drop dumbbells regularly (heavy pressing, failure sets), these are not the right choice.
Slight plate rattle. Normal for stacked-plate adjustables, but present. Does not feel like a fixed dumbbell.
Long-term durability is the unknown. These have not been on the market long enough to know how they hold up over 5-10 years of regular use.
Weight distribution is not perfectly even. Slight awareness during curls. Non-issue for most movements.
Who Should Buy
Buy the MOTV8 Omnibell if you want fast adjustment speed, you will treat them carefully (no dropping, controlled sets), you want a traditional dumbbell shape rather than the Powerblock nesting design, and you are okay with the possibility of replacing a clip here and there over time. They are also a good choice if aesthetics matter to you — the multiple colorway options look nice in a home gym. At this price point for 80 lbs per hand, the value is solid if you understand the durability tradeoff.
Who Should Skip
Skip the Omnibells if you drop dumbbells, if you want something indestructible that you never have to think about, or if you regularly go above 60-70 lbs and want maximum confidence in the locking mechanism under heavy load. In that case, look at Powerblocks (durable, uneven feel), Ironmaster (indestructible, slow to adjust), or REP Pepins (all-metal, moderate speed). If you want the absolute safest bet for heavy use, Ironmaster is the answer — it just costs more and adjusts slower.
Final Verdict
The MOTV8 Omnibell 1180S is a fast, balanced, good-looking adjustable dumbbell with one clear weakness: the plastic locking tabs. If you can live with that — meaning you treat them carefully and accept that you might replace a clip occasionally — these are one of the better options in this price range for adjustment speed and in-hand feel. They feel more like a real dumbbell than Powerblocks, adjust faster than Ironmaster, and cost less than REP Pepins. The durability question is the only thing keeping them from being an easy recommendation. For the right user, they are great. For the wrong user, they will break.
CHECK PRICE — MOTV8 OMNIBELL 1180S
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