Adjustable Weights Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Zeerun is the best-performing adjustable weights brand in July 2026, moving 30,000 units across 2 ASINs for 29.7% of Top 10 volume. ZELUS follows with 25,000 units (24.8%), ahead of NICEPEOPLE on 10,000 units (9.9%).

With 8 brands splitting the Top 10 and 64.4% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $19.99 to $72.99, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B01LR5SM74 booked 6K units at $40.45, with ▲ 50.0% MoM change. On the growth side, B0855H4ZCR leads positive momentum with ▲ 150.0% MoM growth on 500 units, with B0DK3H169C close behind at ▲ 100.0% MoM on 2K units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.