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REP Fitness / Barbells

REP Fitness Colorado Bar

REP’s flagship multipurpose bar, spec-for-spec the closest thing to a Rogue Ohio Bar from anyone else — with a volcano knurl instead of a hill knurl.

View at REP Fitness

Specs

Bar useMixed-use
Weight20 kg (44.1 lb)
Shaft diameter28.5 mm
Sleeve diameter50 mm
Overall length86.6 in
Loadable sleeve length16.1 in
Tensile strength190 ksi
Knurl styleVolcano, medium
Center knurlFalse
Knurl markingsDual, IPF and IWF
Sleeve rotationComposite bushing
Shaft coatingHard chrome or Cerakote
Sleeve coatingHard chrome or Duracoat
WhipMedium
Static rating1,500 lb
Tolerance1%

These figures are copied from REP Fitness’s own published specs and were last checked on 2026-08-31. Manufacturers revise products without notice, and variants differ. Confirm anything your decision depends on with REP Fitness before you buy.

Choose this one if

  • You want one bar for everything and would rather not pay the Rogue premium
  • You prefer a volcano knurl, which grips without shredding your hands
  • You want a 15 kg version available from the same product line

The detail

Put this next to the Rogue Ohio Bar and the sheets are nearly the same bar: 28.5 mm shaft, 190,000 PSI, dual knurl marks, no centre knurl, bushings rather than bearings, and around 16 inches of loadable sleeve. That is not a coincidence — it is the spec everyone converges on for a bar meant to do everything.

The difference worth caring about is the knurl. Volcano knurling leaves a ring of raised material around each valley rather than a point, so it grips well without being as abrasive as an aggressive hill knurl. If you do high-rep work, or you have ever finished a session with torn hands, that is a real consideration and it is largely a matter of preference rather than quality.

Composite bushings instead of bronze is REP’s other departure. In practice both spin slower than needle bearings and both tolerate garage conditions; the composite is quieter and cheaper, with less long-term track record.

REP publishes a static rating (1,500 lb) and a 1% weight tolerance, which more manufacturers should do — the tolerance in particular tells you the bar actually weighs what it says, and nobody advertises a figure they would fail.

The absence of a centre knurl is the same trade the Ohio Bar makes: better for front rack and high-bar squats, worse if you low-bar squat and rely on the knurl to stop the bar travelling down your back.