Signature

Signature AT2IN-2.5P Weight Plates

Plate
Cast Iron
Olympic (2-Inch Center)
2.5 pounds

4.6/ 5 on Amazon407Amazon ratings3.8ProductDome score

More reviewed than 68%

High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forBuy if you need a 2-inch Olympic plate for small load increases between heavier plates

A straightforward 2.5 lb cast iron Olympic plate for microloading, backed by a 4.6 rating across 407 reviews.

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ProductDome scorecard

How it ranks among the 114 plates we track

3.8/ 5ProductDome scoreHigh confidence

Owner satisfaction · 56% of scorecategory median 4.6★4.6

4.6★ across 407 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 235 ratings3.3

407 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score0.0

Modest tracked demand last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 114 plates we track - how the scorecard works · full plates data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

A cast iron plate weighing 2.5 pounds with a 2-inch center hole sized for standard Olympic barbell sleeves, meant for fine-tuning a bar's total load in small increments.

This is a single microloading plate rather than a full set, so its job is topping up a bar between larger plates, not carrying the main load on its own. Cast iron has no rubber coating, so expect metal-on-metal noise when racking.

Cast iron construction
2.5 lb weight
2-inch Olympic center hole
4.6 rating from 407 reviews

Who it's for

Lifters who already own a plate set and need small increments to progress a lift. Not for anyone who wants a quiet, rubber-coated finish or a full set in one purchase.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Fits standard 2-inch Olympic sleeves
Useful for small, precise load jumps
Durable cast iron build

What to check first

No rubber coating, so it's noisy on the bar
Listed as a single plate, not a pair

Performance notes

Cast iron holds its shape under repeated loading and unloading, but bare metal can mark floors or gym mats and will clang against other iron plates on the bar.

Specifications

Brand	Signature
Model	AT2IN-2.5P
Material	Cast Iron
Color	Olympic (2-Inch Center)
Item Weight	2.5 pounds

How it compares

This product against the closest alternatives we track in plates.

Product	Amazon rating	Ratings	ProductDome score
Signature AT2IN-2.5P Weight PlatesThis product	4.6 / 5	407	3.8 / 5
CAP OPHWIS-010 Weight PlatesCAP	4.7 / 5	15,711	4.5 / 5
RitFit Weight Plates for BarbellRITFIT	4.8 / 5	1,565	4.4 / 5
EVERYMATE 1.25LB Change Plates Set Weight PlatesEVERYMATE	4.8 / 5	1,448	4.4 / 5
JFIT 20-6650-pr Weight PlatesJFIT	4.7 / 5	777	4.3 / 5

Frequently asked

Questions about the Signature AT2IN-2.5P

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

Does the Signature AT2IN-2.5P fit standard Olympic barbells?

Yes, its 2-inch center hole is sized for standard Olympic sleeves.

Is this a single plate or a pair?

The listed specs describe a single 2.5 pound plate.

What is it made of?

Cast iron.