Compatibility and ownership
MX30 legacy versus EVO: keep generations separate
The MX30 clearance listing is a prior-generation product, not a smaller MX Select EVO. Its unusual value in a comparison is the documented 7.5–30 lb pair range and a separate one-end offset claim. The generation boundary matters more than the similar black housings and yellow selectors.
Keep the base models separate
The legacy MX30 page calls it the prior-year model and marks the offer sold out. Its supplied range is 7.5–30 lb per hand, with ten standard balanced positions from 7.5 to 30 lb in 2.5 lb steps. The MX55 EVO starts at 10 lb and has a 55 lb endpoint, while MX70 and MX100 EVO offer higher supplied ceilings. The EVO family’s range does not make its accessories universal. MX Fitness Supply explicitly says the MX30 does not work with the EVO magnetic 1.25 or 2.5 lb plates. Treat the two generations as distinct products even when both are described as Rapid Change dumbbells.
Offsets are not the same as a balanced ladder
The MX30 seller lists nine extra totals at 1.25 lb intervals between standard positions. Those are made by changing one end dial one click, so the two ends are not set to the same load. That is an advertised capability, not the same thing as a balanced 1.25 lb ladder. The official MX30/MX55/MX85 user guide tells owners to change dials only in the cradles and to adjust both ends to the desired training weight; it does not explain the one-end-offset routine. If matched end loads are essential, use only the ten standard positions in this assessment. If considering the advertised offset, keep the manual’s wording visible and confirm the exact instructions for the individual unit rather than inferring permission from similar EVO products.
Stand fit follows the product generation
The earlier-generation MX stand page lists compatibility with the MX30, MX55 and MX85 family. The current EVO stand is a different accessory for current EVO pairs. Both are sold separately. The MX30 page also lists the adjustable bench separately. A photograph of a stand or of a sibling model is not evidence that it comes in the base-pair box; check the exact listing and confirm the stand generation.
What to check on an older pair
For a used MX30, identify the units by their MX30 markings and verify that both handsets and their corresponding cradles are present. The manual identifies the MX30 by name and covers cradle-feet assembly, selector locking and adjustment in the cradle. It warns not to drop, throw or strike the system together, and says to stop using a malfunctioning unit. Inspect that each plate stack moves and locks cleanly while the dumbbell is seated, and do not assume an EVO micro-plate kit, dial decal, or stand transfers across generations.
The public MX30 dimensions are not perfectly harmonized: the seller’s approximate handle diameter and full-load length differ slightly from the older manufacturer guide’s published measurements. If grip diameter, loaded length or storage space is a deciding constraint, measure the exact unit and its cradle. For a current route to a higher included load, compare the MX55R EVO and the MX70R EVO reviews, then check their own model-specific instructions and accessories. The MX30 remains a useful reference, but its sold-out prior-year page is not a current purchase recommendation.