The MX Select MX55 Rapid Change Adjustable Dumbbells offer a compact, space-saving solution for home gym users seeking convenience and precision. Reviewers praised the rapid change mechanism and selectorized design for enabling smooth transitions between weights during workouts. The durable powder-coated finish adds longevity, though some noted the higher cost and limited weight range may not meet all users' needs. This product appeals to intermediate lifters looking for a versatile, efficient dumbbell system.
Full review
Compact footprint with space-saving design
This footprint allows users to store the dumbbells and their accompanying stand without dominating a small space, making them particularly suitable for urban dwellers or those with limited room. The dumbbell stand features built-in trays designed to hold unused plates upright and properly aligned for interlocking. These trays are constructed entirely from steel, offering durability and stability. The stand's sleek and elegant design not only makes it visually appealing but also contributes to its functional utility by providing a secure platform for the dumbbells during weight adjustments and storage.
Rapid adjustment mechanism with user feedback
Adjusting weight settings on the MX55 dumbbells involves a straightforward process that requires pushing a button to release yellow knobs, twisting to select the desired weight, and then pressing the knobs back down to secure the plates. This mechanism is described as remarkably easy and effective by reviewers, with one noting that the process feels secure once the knobs are properly set. The system allows for adjustments in 5-pound increments from 10 to 55 pounds, providing a wide range of options for intermediate to advanced lifters. Users report that the yellow knobs provide tactile feedback when engaged, indicating a secure lock when properly set. However, some users have noted that the process still takes approximately 30-40 seconds per adjustment, which can be cumbersome during fast-paced workouts.
Weight range and grip handle design
The MX55 dumbbells offer a weight range from 10 to 55 pounds in 5-pound increments, which is considered excellent for intermediate to advanced lifters. The grip handles feature a textured metal surface designed to prevent slipping while avoiding skin irritation, though some users recommend using lifting gloves for additional comfort. The handles are described as having a pleasing texture that provides good grip without causing calluses. The weight range allows for versatile training across multiple muscle groups and exercise types, making it a valuable addition to any home gym. However, the weight distribution and plate shape have raised concerns among users regarding balance and exercise compatibility.
Diagonal plate shape creates balance issues
The most significant criticism of the MX55 dumbbells centers on the shape of their weight plates, which are described as wide circles at a diagonal angle. This design creates awkward balance issues during workouts, particularly affecting exercises like upright rows where the weight heads interfere with movement. Users report that the diagonal slant causes the dumbbells to feel unbalanced, forcing repeated grip adjustments and adding a strange tug to fluid exercises. The plate design also prevents the use of certain exercises such as push-ups balanced on the dumbbells, sumo squats, and goblet squats, which require holding the ends of the dumbbell. Additionally, the diagonal angle makes swinging motions inadvisable due to the rattling plates and potential for imbalance during dynamic movements.
Slow weight change process and safety concerns
While the adjustment mechanism is considered relatively easy compared to other adjustable dumbbells, users note that changing weights still takes approximately 30-40 seconds per adjustment, which can be problematic during fast-paced workouts. The process involves four distinct steps: pop, twist, pop, and secure, which can be time-consuming when frequent adjustments are needed. Safety concerns arise from the careful handling required when removing and replacing plates, as improper angles or speeds can result in plates falling onto toes. Users report that plates must be carefully aligned with the tray angles to ensure proper fitting, and improper alignment can prevent the dumbbells from securing correctly. Some users have found that adjusting the cradle from underneath can help make the process easier, but this requires additional attention to setup.
Limited exercise compatibility due to design constraints
The MX55 dumbbells are incompatible with numerous exercises due to their design constraints. The diagonal plate shape prevents exercises that require holding the ends of the dumbbell, such as sumo squats and goblet squats. Users cannot rest bodyweight on the handles, ruling out exercises like push-ups balanced on the dumbbells. The plate design also makes swinging motions inadvisable due to rattling and imbalance issues. Additionally, the system cannot be used for exercises that require smacking the dumbbells together or dropping them without risk. These limitations significantly reduce the versatility of the dumbbells compared to traditional fixed dumbbells, which can be used for a wider range of exercises. The design also prevents the use of certain functional movements that require the full length of the dumbbell.
Durability and construction quality
The construction quality of the MX55 dumbbells is generally well-regarded, with the stand constructed entirely from steel providing durability and stability. Users note that the stand's footprint is compact yet functional, and the overall build quality appears robust. The steel construction of the stand contributes to its ability to securely hold the dumbbells during use and adjustment. However, the weight plates themselves are described as having a diagonal slant that affects performance rather than construction quality. The textured grip handles are noted to provide good traction without causing skin irritation, though some users still recommend lifting gloves for extended use. The interlocking plate system appears to function well when properly aligned, though users report that misalignment can cause issues during reassembly.
Value proposition for intermediate lifters
For intermediate to advanced lifters seeking a space-saving solution, the MX55 dumbbells offer a compelling value proposition despite their drawbacks. The ability to store 10 different weights in a compact footprint makes them particularly appealing to those with limited space. The rapid adjustment mechanism, while not instantaneous, provides a convenient alternative to managing multiple fixed dumbbells. The weight range from 10 to 55 pounds covers most intermediate lifting needs, though the design limitations may restrict certain exercises. Users who prioritize space efficiency over maximum exercise versatility may find the MX55 a suitable choice. However, those who require maximum exercise variety or frequent weight changes may find the system's limitations outweigh its benefits. The stand's integrated storage system adds value by keeping plates organized and ready for use.
Strengths
- +Rapid change mechanism allows for quick weight adjustments during workouts
- +Compact design saves significant space compared to traditional dumbbell sets
- +Selectorized system provides precise weight increments for controlled training
- +Durable construction with powder-coated finish resists corrosion and wear
Watch-outs
- −Higher price point compared to basic adjustable dumbbell models
- −Limited weight range options may not suit advanced lifters
How it compares
The MX Select MX55 Rapid Change Adjustable Dumbbells offer the fastest weight transitions compared to the Core Adjustable Dumbbells, which require a twist mechanism. However, it's more expensive than the Core and lacks the wide weight range of the Yes4All Cast Iron set. Unlike the SMRTFT Adjustable Dumbbell, it provides a more compact design but has a narrower weight selection and is less durable than the PowerBlock Elite.
Rating sources
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Our 3.8 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
