CAP Barbell OBIS-47B Olympic EZ Curl Bar
- Item Weight: 15.5 pounds
- Weight Capacity Maximum: 200 pounds
- Shaft Length: 32 inches
- Sleeve Length: 7.5 inches
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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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ASIN: B0BFBVZ8M7Model: OBIS-47BCategory: Weightlifting Bars
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.
- 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.
Pros and cons
- 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 Barbell |
|---|---|
| Model | OBIS-47B |
| Dimensions & fit | |
| Item Weight | 15.5 poundslower than 67% of 40 weightlifting bars |
| Weight Capacity Maximum | 200 poundslower than 74% of 58 weightlifting bars |
| Shaft Length | 32 incheslower than 73% of 27 weightlifting bars |
| Sleeve Length | 7.5 incheslower than 77% of 40 weightlifting bars |
| Grip Size | 1 inchlower than 68% of 45 weightlifting bars |
| Item Dimensions L x W | 47 × 2.7 inches |
| Construction & materials | |
| Material | Alloy Steel |
| Finish Type | Black |
| Other details | |
| Grip Type | Knurled |
| Part Number | OBIS-47B |
Closest rivals on specs
ExtreSpo Standard EZ Curl Bar 47 Inch- Item Weight 15.5 vs 11 pounds (+41%)
Amazon Basics Olympic Curl Barbell 47 Inch- Weight Capacity Maximum 200 vs 300 pounds (-33%)
RITFIT 2 Inch Olympic Barbell- Weight Capacity Maximum 200 vs 350 pounds (-43%)
- Item Weight 15.5 vs 20 pounds (-22%)
Frequently asked questions
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.