CAP Barbell 47-Inch Olympic EZ Curl Bar for 2-Inch Weight Plates
- Bar
- 200 pounds
- Knurled
- Black
- More reviewed than 88%
A well-reviewed EZ curl bar at a budget price, with rotating sleeves and knurling placed where hands actually sit; check the included clamps on arrival.
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How it ranks among the 101 bars we track
4.6★ across 1,600 Amazon ratings, Bayesian-smoothed toward the category average.
1,600 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
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 101 bars we track - how the scorecard works · full bars data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jul 5, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 47-inch angled EZ curl bar built for 2-inch Olympic plates, rated to 200 lb and made from cold-drawn alloy steel with independently rotating sleeves. The bend is shaped for a more natural wrist angle on curls and extensions than a straight bar.
This is a curl-specific accessory bar rather than a full barbell, sized for arm isolation work in a home gym. Reviewers who have owned it for a couple of years report the bend holds up to regular curling, and swappable plate clamps mean a bad clip is a cheap fix rather than a return.
- 47-inch length sized for 2-inch Olympic plates
- 200 lb capacity, 51,000 PSI cold-drawn steel
- Independently rotating loadable sleeves
- 12.2 inches of diamond knurling per side
Who it's for
Home gym owners adding curls, skull crushers and other arm work who already have 2-inch Olympic plates. Not a fit for lifters who need a bar rated well past 200 lb, or those with very large hands per one reviewer's note on grip thickness.
What buyers say
From Amazon customer reviews.
Buyers who have had the bar for a while call it sturdy and well made at the price, with the angled grip singled out as comfortable for average size hands, though one reviewer with large hands flagged the grip as thin. One buyer's end caps developed a squeak that WD40 resolved, and another got a plate clamp with a misdrilled screw hole.
Strengths and trade-offs
Drawn from this product's published specifications.
- Comfortable angled grip reported after two years of use
- Rotating sleeves keep plate spin off the wrists
- Knurling placed where hands rest on curls
- Squeaky end cap needed WD40 to fix
- Included plate clamps not universally trouble-free
- 200 lb capacity limits it to lighter accessory work
Performance notes
The 51,000 PSI tensile steel shaft and independently rotating sleeves are what keep plates turning smoothly instead of twisting the bar during a set, and the 12.2 inches of diamond knurling sits at the natural hand position for curls rather than running the full shaft.
Specifications
| Brand | CAP |
|---|---|
| Model | OBIS-47B |
| Dimensions & fit | |
| Weight Capacity Maximum | 200 pounds |
| Item Weight | 15.5 pounds |
| Shaft Length | 32 inches |
| Item Dimensions L x W | 47 × 2.7 inches |
| Grip Size | 1 inch |
| Sleeve Length | 7.5 inches |
| Construction & materials | |
| Finish Type | Black |
| Material | Alloy Steel |
| Other details | |
| Grip Type | Knurled |
| Part Number | OBIS-47B |
Other CAP bars
How it compares
This product against the closest alternatives we track in bars.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| CAP Barbell 47-Inch Olympic EZ Curl Bar for 2-Inch Weight PlatesThis product | 4.6 / 5 | 1,600 | 4.3 / 5 |
| Everyday Essentials Olympic Super Curl Barbell Curl BarEveryday | 4.7 / 5 | 3,900 | 4.4 / 5 |
| Olympic EZ Curl Barbell Bar 47"Olympic | 4.7 / 5 | 1,000 | 4.4 / 5 |
| ExtreSpo 47" EZ Curl Bar Weight Lifting BarExtreSpo | 4.6 / 5 | 1,300 | 4.3 / 5 |
| Yaheetech 7-Foot Olympic Barbell with CollarsYaheetech | 4.7 / 5 | 2,000 | 4.3 / 5 |
Similar bars from other brands
Questions about the CAP OBIS-47B
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What plate size does the CAP EZ curl bar take?
It is built for standard 2-inch Olympic weight plates and collars.
How much weight can the CAP 47-inch EZ curl bar hold?
It is rated to 200 lb total.
Do the sleeves rotate independently of the bar?
Yes, the sleeves spin separately from the shaft to keep plate rotation from twisting at the wrist.