CAP Barbell OBIS-34SB Olympic Triceps Bar
- Weight Capacity Maximum: 200 pounds
- Shaft Length: 17.5 inches
- Sleeve Length: 8.2 inches
- Grip Size: 8.2 inches
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A solid, inexpensive way to add dedicated neutral-grip triceps and curl work to a home gym that already runs 2-inch Olympic plates.
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ASIN: B0B625QVVQModel: OBIS-34SBCategory: Weightlifting Bars
More from this brandAll CAP weightlifting barsOverview
CAP's OBIS-34SB is a 34-inch neutral-grip specialty bar built for triceps extensions, skull crushers, hammer curls and close-grip presses. It takes 2-inch Olympic plates and carries a 200 lb capacity, sized for home and garage gyms.
This is an isolation bar, not a stand-in for a straight barbell: the compact frame and vertical handles exist specifically to keep the hands neutral through overhead and pressing arm work. One caveat from an owner: the plate-locking expanders have a small metal tab that can catch a finger if you're not paying attention.
- 34-inch cold-rolled steel frame
- 6.5-inch independently rotating sleeves
- Medium-depth knurled grip
- 200 lb weight capacity
Who it's for
Suits home gym owners who already have 2-inch Olympic plates and want a dedicated arm-isolation tool for triceps, biceps and shoulder work. It is not a replacement for a main working barbell used in squats, bench or deadlifts.
Pros and cons
- Neutral grip eases wrist and elbow strain
- Revolving sleeves stop plates twisting mid-set
- Compact 34-inch frame keeps load centered
- Fits standard 2-inch Olympic plates
- 200 lb capacity caps loading versus a full barbell
- Plate-lock expanders have a sharp tab per one owner
Specifications
| Brand | CAP |
|---|---|
| Model | OBIS-34SB |
| Dimensions & fit | |
| Weight Capacity Maximum | 200 poundslower than 74% of 58 weightlifting bars |
| Shaft Length | 17.5 incheslower than 100% of 27 weightlifting bars |
| Sleeve Length | 8.2 incheslower than 64% of 40 weightlifting bars |
| Grip Size | 8.2 incheshigher than 98% of 45 weightlifting bars |
| Item Dimensions L x W | 34.2 × 6.7 inches |
| Construction & materials | |
| Material | Alloy Steel |
| Finish Type | Black |
| Other details | |
| Grip Type | Knurled |
| Part Number | OBIS-34SB |
Closest rivals on specs
Sunny Health & Fitness Olympic Hex Bar- Sleeve Length 8.2 vs 11.5 inches (-29%)
- Weight Capacity Maximum 200 vs 400 pounds (-50%)
Synergee Olympic Hex Trap Bar- Sleeve Length 8.2 vs 10 inches (-18%)
- Weight Capacity Maximum 200 vs 499.99 pounds (-60%)
Frequently asked questions
What is the CAP OBIS-34SB triceps bar used for?
It's a specialty bar for overhead triceps extensions, skull crushers, hammer curls and close-grip neutral presses, not general barbell training.
What plate size fits the CAP triceps bar?
It takes standard 2-inch Olympic plates on its 6.5-inch rotating sleeves.
How much weight can the CAP triceps bar hold?
The bar is rated for a 200 lb capacity.