OSO Mighty Axle Collars 2.0

The OSO Mighty Axle Collars 2.0 are Rogue’s lightweight, economical locking-clamp collars built specifically for 1.9” outside-diameter specialty bars – the Rogue Axle, Stubby Axle, MG-1/2/3 Multi-Grip Bars, TB-2 Trap Bar, Log Bars, Branch & Beam, Farmers Walk Handles, and the RH-2 Reverse Hyper. They share the same 6061 billet aircraft-grade aluminum construction, rubberized interior lining, and lever-operated locking clamp as the standard-bore OSO Mighty Collars, distinguished by notched flanges and a red anodized finish that make them easy to grab as the dedicated specialty-bar set. Rogue positions them as the “grab and go” option for anyone training on specialty bars alongside a standard Olympic barbell – and because of the smaller 1.9” bore, they explicitly cannot be swapped onto a standard 1.98” barbell, so most buyers will own both a standard and an axle set. The collars are also ACFT-approved for Army Combat Fitness Test use.

Buyer feedback on Rogue’s own site is mixed rather than uniformly positive: several customers report the collars fitting and holding securely once matched to the correct bar – one describes swinging loaded plates on a reverse hyper without slippage – but others report the collars failing to seat on the exact bars they were bought for, including a new TB-2 Trap Bar and a multi-grip bar, pulling the manufacturer’s own review average down to 3 out of 5. No independent, axle-specific editorial or video review exists yet; the closest available coverage reviews the standard-bore Mighty Collars sibling, which is generally described as budget-friendly and functional with some noted sliding and below-premium durability.