HG 2.0 Axle Collars

Name: HG 2.0 Axle Collars
Brand: Rogue Fitness
Rating: 4.73 (16 reviews)

Rogue’s HG 2.0 Axle Collars are a purpose-built barbell collar for specialty bars that use 1.5” schedule-40 pipe with a 1.9” (48.3mm) outside diameter — a size standard 2” Olympic collars simply won’t grip. They’re sold in pairs and share the same spring-tab HG locking mechanism as Rogue’s standard collars, updated with durable resin construction, stainless steel pivot hardware, and upgraded internal rubber padding for a firmer hold on the bar sleeve.

Rogue lists them as compatible with its own specialty-bar lineup — the Rogue Axle, Stubby Axle, MG-1/MG-2/MG-3 multi-grip bars, TB-2 trap bar, LB-1/LB-2 log bars, Farmers Walk handles, and the RH-2 reverse hyper — and they’re approved for use in the U.S. Army’s Combat Fitness Test. Community threads on r/homegym repeatedly confirm the underlying problem these solve: owners of 1.9”-diameter specialty bars find that six or more standard collar sets fail to fit, and independently land on the HG 2.0 Axle Collars (or an equivalent) as the fix. The tradeoff is that they’re strictly single-purpose — they cannot be used on a standard 1.98” (50.4mm) Olympic barbell, so most buyers own this pair alongside a separate set of standard collars.

Color	red with Rogue branding
Width	2" per collar
Weight	0.5 lb per pair
Made in	not made in USA (per manufacturer spec sheet)
Sold as	pair (also available in 5, 10, or 20-pair cases)
Material	durable resin body, stainless steel pivot hardware, rubber sleeve padding
Mechanism	HG lock-in design with a spring-loaded quick-release tab
Compatibility	1.5" schedule-40 pipe / 1.9" (48.3mm) outside diameter specialty bars only — NOT compatible with standard 1.98" (50.4mm) Olympic barbells
Certifications	approved for use in the U.S. Army Combat Fitness Test (ACFT)
Compatible equipment	Rogue Axle, Stubby Axle, MG-1/MG-2/MG-3 multi-grip bars, TB-2 trap bar, LB-1/LB-2 log bars, Farmers Walk handles, RH-2 reverse hyper

What is a Collar?

What barbell collars are

Collars (clips) lock the plates onto a barbell’s sleeves so they can’t slide or rattle off — a safety essential, especially for pressing and Olympic lifts. The common types: cheap spring clips, quick lock-jaw / quick-release collars (the everyday favorite — fast and secure), and competition collars (precision-weighted, 2.5 kg each, for calibrated meets).

What to look for

A secure clamp that won’t creep under drops or high reps, quick on-and-off operation, and a fit for your bar’s sleeve diameter (standard Olympic is 50 mm). For most home gyms, a pair of lock-jaw-style collars is the right balance of speed, grip, and price.

How it compares

	HG 2.0 Axle Collars	KeppiFitness Barbell Clips OPENCOLLAR	HG 2.0 Collars	Lock-Jaw Pro Magnet Collars
GymRadar rating	4.73/5	4.72/5	4.76/5	4.78/5
Price	$47.00		$50.00	$54.99
Color	red with Rogue branding
Width	2" per collar
Weight	0.5 lb per pair		0.85 lb/pair	~1.1 lb per collar
Made in	not made in USA (per manufacturer spec sheet)			USA
Sold as	pair (also available in 5, 10, or 20-pair cases)		pair
Material	durable resin body, stainless steel pivot hardware, rubber sleeve padding		nylon resin	Composite resin & rubber with embedded magnets, elastomer pads
Mechanism	HG lock-in design with a spring-loaded quick-release tab		spring-loaded cam lock
Compatibility	1.5" schedule-40 pipe / 1.9" (48.3mm) outside diameter specialty bars only — NOT compatible with standard 1.98" (50.4mm) Olympic barbells
Certifications	approved for use in the U.S. Army Combat Fitness Test (ACFT)
Compatible equipment	Rogue Axle, Stubby Axle, MG-1/MG-2/MG-3 multi-grip bars, TB-2 trap bar, LB-1/LB-2 log bars, Farmers Walk handles, RH-2 reverse hyper

4.7/5 · 16 GymRadar reviews

Reviews by source

Expert	4.73/5	16 reviews
Retailer	4.6/5	111 reviews
Reddit	4.5/5	4 reviews

Rogue’s HG 2.0 Axle Collars solve a narrow but real problem: standard 2” Olympic collars simply don’t grip the 1.9” diameter of axles, log bars, and other specialty pipe, and independent reviewers and r/homegym threads repeatedly name this pair as the known-working fix. Build quality and functionality are the standout dimensions — the spring-tab HG locking mechanism, stainless hardware, and upgraded rubber padding produce a secure, drop-resistant hold that reviewers consistently praise. The weakest dimension is versatility, since the collars are strictly single-purpose: they physically cannot be used on a standard 50mm Olympic barbell, and buyers need a second, separate pair of standard collars for everything else in the gym.

+Functionality: HG locking mechanism with a spring-loaded quick-release tab delivers a consistent, secure hold through repeated drops while staying quick to put on and take off (Rogue Fitness manufacturer page)
+Build quality: durable resin body with stainless steel pivot hardware and upgraded internal rubber padding for maximum grip friction on the bar sleeve (Rogue Fitness manufacturer page)
+Build quality: manufacturer's own on-site rating sits at 4.6 from 111 reviews, with the recurring praise theme being a secure grip that keeps plates firmly in place during intense use (Rogue Fitness manufacturer page)
+Value: repeatedly named by name in r/homegym threads as the reference product for 1.9" specialty-bar collars — one commenter identifies a third-party competitor as "the same thing as ROGUE HG 2.0 AXLE COLLARS" (r/homegym)
+Versatility: purpose-built compatibility across Rogue's specialty-bar lineup — the Axle, Stubby Axle, MG-1/2/3 multi-grip bars, TB-2 trap bar, LB-1/LB-2 log bars, Farmers Walk handles, and the RH-2 reverse hyper (Rogue Fitness manufacturer page)

−Versatility: strictly single-purpose — cannot be used on a standard 1.98" (50.4mm) Olympic barbell, so owners need a separate pair of standard collars for regular bar work (Rogue Fitness manufacturer page, Garage Gym Reviews collars guide)
−Functionality: the tight clamping mechanism requires significant force to close, which some manufacturer-page reviewers flag as a usability issue (Rogue Fitness manufacturer page)
−Value: at $47/pair for a single-purpose accessory, cost only makes sense for households that actually own axle-diameter specialty equipment (Rogue Fitness manufacturer page)
−Durability: no independent long-term durability testing found in the reviewed sources — coverage leans on manufacturer specs and community anecdote rather than teardown or wear testing (knowledge base as gathered)

$47.00

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