OSO Mighty Collars
OSO Mighty Collars are my lightweight collar pick because the 6061 aluminum body, nylon lever, and rubber lining keep the pair to only 0.3 lb while still giving you a proper Olympic-bar clamp.
Pros:
- Extremely lightweight
- Aluminum body is stronger than cheap plastic clamps
- Rubber lining protects the bar
- Easy clamp-style operation
- Made in the USA
- Reasonable price for aluminum collars
Cons:
- Can slip occasionally
- Not the strongest-clamping premium collar
- Nylon lever can be the weak point
Brand:
OSO
Best For:
Lifters who want an extremely light aluminum collar for normal Olympic-bar training and frequent plate changes.
Skip If:
Skip them if maximum clamping force and long-term abuse resistance matter more than low weight.
Research Status:
Research Based
Specifications
| Design | Clamp |
|---|---|
| Construction | 6061 aircraft-grade aluminum with nylon lever |
| Interior | Rubber lining |
| Width | 1.4" |
| Weight | 0.3 lb per pair |
| Sleeve Size | 2" Olympic |
| Colors | Gunmetal and blue |
| Origin | USA |
Owners Feedback
Pros
- Extremely lightweight
- Aluminum body is stronger than cheap plastic clamps
- Rubber lining protects the bar
- Easy clamp-style operation
- Made in the USA
- Reasonable price for aluminum collars
Cons
- Can slip occasionally
- Not the strongest-clamping premium collar
- Nylon lever can be the weak point
