OBS-20KG - 28mm Stainless Olympic Bar

Name: OBS-20KG - 28mm Stainless Olympic Bar
Brand: Ivanko
Rating: 4.67 (3 reviews)

The Ivanko OBS-20KG is a 28mm stainless steel Olympic bar built as a general cross-training bar rather than a specialized powerlifting or weightlifting tool. It’s 7’2” long, weighs 20kg (44.08 lb), and is made in the U.S.A. from 218,000 PSI-rated stainless steel – a step up from Ivanko’s standard 200,000 PSI steel bar (the OB-20KG) – that resists rust, chipping, and peeling since there’s no coating to wear off. Every bar is magnetic- and ultrasonic-tested for internal and external flaws and straightened to a 10/1000” tolerance, tighter than the 89/1000” mil standard. The shaft carries a passive three-ring “silly knurl” pattern with no center knurl, riding on bushings (a needle-bearing version, the OBSNB, is sold separately). Owners consistently praise its fit and finish – no sleeve play – but multiple long-term owners have found the knurl too slick for confident grip without chalk.

Buying guide

Best Barbell for Your Home Gym — July 2026

Knurl	Passive three-ring pattern, no center knurl
Length	7' 2" (86")
Origin	Made in U.S.A.
Weight	20kg (44.08 lb)
Testing	Magnetic particle tested, ultrasonic tested, straightness certified to 10/1000"
Diameter	28mm (1.103")
Material	218,000 PSI-rated stainless steel
Rotation	Bushings
Manufacturer	Ivanko Barbell Company
Shaft finish	Matte stainless (uncoated)
Sleeve diameter	1.947" (49.40-49.56mm)

What is a Barbell?

What a barbell is

The barbell is the center of a strength gym — the bar you squat, press, deadlift, and clean with. A men’s Olympic bar is 20 kg (44 lb) and 7.2 ft long (15 kg / 6.5 ft for women). The specs that matter: knurl (the grip texture — aggressive for pulls, milder for high-rep work), shaft diameter (28–29 mm for barbell lifts), sleeve rotation (bushings are fine for slow lifts; bearings spin fast for the Olympic lifts), tensile strength (~190k+ PSI resists bending), and coating (bare steel grips best but rusts; stainless and Cerakote trade grip for corrosion resistance).

Which one to buy

For general lifting, a multipurpose bar (28–28.5mm shaft, dual knurl marks, no center knurl) does squats, bench, deadlifts, and the occasional clean off one bar — this is the right first barbell for most home gyms. Choose a dedicated power bar (29mm, stiffer, aggressive center-knurl grip) only once you know you’re training squat/bench/deadlift specifically and want the stiffest, grippiest tool for that job. A dedicated Olympic weightlifting bar (needle bearings, more whip) is worth it only if you clean, snatch, or jerk regularly.

Beyond your main bar, specialty bars solve specific problems rather than replacing it: a safety squat bar shifts load off sore shoulders, a trap/hex bar takes stress off a cranky lower back on pulls, and a curl bar’s camber reduces wrist strain on isolation work. Add them once you know which problem you actually have.

How it compares

	OBS-20KG - 28mm Stainless Olympic Bar	Saxon Bar - Armlifting USA	Cerberus Kratos Strongman Bar	Riot Olympic Safety Squat Bar
GymRadar rating	4.67/5	4.67/5	4.67/5	4.67/5
Price	$1,084.00		$1,299.99
Knurl	Passive three-ring pattern, no center knurl		Aggressive, no center knurl
Length	7' 2" (86")			226cm
Origin	Made in U.S.A.
Weight	20kg (44.08 lb)		28 kg	20.9-22kg (~46-48.5 lb, depending on source)
Testing	Magnetic particle tested, ultrasonic tested, straightness certified to 10/1000"
Diameter	28mm (1.103")		28.5 mm
Material	218,000 PSI-rated stainless steel
Rotation	Bushings
Manufacturer	Ivanko Barbell Company		CERBERUS Strength
Shaft finish	Matte stainless (uncoated)		Black zinc
Sleeve diameter	1.947" (49.40-49.56mm)

4.7/5 · 3 GymRadar reviews

Reviews by source

Expert

4.67/5

3 reviews

The Ivanko OBS-20KG is a 28mm stainless Olympic bar built as a general cross-training bar rather than a specialized powerlifting or weightlifting tool. Build quality is the standout: owners consistently report excellent fit and finish with no sleeve play, backed by 218,000 PSI stainless steel that’s magnetic- and ultrasonic-tested and straightened to a tight 10/1000” tolerance, and the stainless shaft won’t rust, chip, or peel the way a coated bar can over time. The weak spot is the knurl – the OBS ships with no center knurl and a passive “silly knurl” three-ring pattern that multiple long-term owners independently called too slick for confident grip without chalk, a notable shortfall for a bar priced near Ivanko’s own OBXS-20KG stainless power bar. At 28mm it sits in the sweet spot lifters describe as adding useful bar whip without over-flexing at moderate training weights, but value is mixed: new pricing near $1,000+ struck used-market buyers as steep for what the bar delivers.

+Build quality: owners consistently report great fit and finish with no sleeve play (Bodybuilding.com forum)
+Durability: 218,000 PSI stainless steel that won't rust, chip, or peel like a coated bar, mag- and ultrasonic-tested with straightness certified to 10/1000" (Ivanko manufacturer page)
+Functionality: 28mm diameter gives the bar some whip for deadlifts without the flex becoming a factor at moderate training weights, per experienced lifters (Bodybuilding.com forum)
+Versatility: marketed and used as a general cross-training bar that covers Olympic lifts and barbell training beyond a single discipline (Ivanko manufacturer page)

−Functionality: no center knurl and a passive, slick knurl pattern that two separate long-term owners flagged as needing chalk for confident grip (Bodybuilding.com forum)
−Value: new pricing above $1,000 struck used-market buyers as steep -- one owner called it "borderline insane" against the ~$400 it fetches used (Bodybuilding.com forum)
−Functionality: at least one owner who bought four used units called the knurl "pretty passive" and the knurl marks "dumb," ultimately preferring Rogue bars instead (Bodybuilding.com forum)
−Durability: no independent long-term wear data beyond owner anecdotes -- editorial coverage (Garage Gym Reviews) is a spec stub with no tested verdict

$1,084.00

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