Safeties & Spotter Arms for the REP PR‑4100 Folding Squat Rack
10 options that fit the PR-4100 Folding Squat Rack’s 3×3" uprights and 5/8" holes. Confirmed ones are listed first.
REP Spotter Arms (4000 Series)ConfirmedREP sells it for the PR-4100 Folding Squat Rack.
24" long. REP: the rack must be bolted down or have front feet or a flat-foot base.
REP Flip-Down Safeties (4000 Series)Fits per specs3x3" uprights, 5/8" pin in 5/8" holes.
Clevis-pin mount. REP rates them 1,000 lb on 4000/5000 racks.
Rogue Monster Lite Strap Safety System 2.0Fits per specs3x3" uprights, 5/8" pin in 5/8" holes.
Sold in 24", 30" and 43" lengths: match your rack's inside depth.
Titan Pin and Pipe Safety Set (T-3 / X-3)Fits per specs5/8" pin in 5/8" holes.
Sold in 24", 30" and 36" depths; Titan says the 30" fits only the X-3 flat-foot rack. Match your rack's depth.
Synergee Power Rack Safety ArmsFits per specs3x3" uprights, 5/8" pin in 5/8" holes (ships with 5/8" and 1" pins).
Sold in 2x2, 2x3 and 3x3 versions with a converter for 5/8" or 1" holes: order the one for your uprights. Rated 750 lb per pair.
Synergee Power Rack Safety StrapsFits per specs3x3" uprights, 5/8" pin in 5/8" holes (ships with 5/8" and 1" pins).
Lengths for 23", 29" and 35" inside depth (2x2 racks: 23" only). Sold in 2x2, 2x3 and 3x3 versions with a converter for 5/8" or 1" holes: order the one for your uprights.
Bells of Steel Safety Straps (Hydra)Fits per specs3x3" uprights, 5/8" pin in 5/8" holes.
17", 24", 30" and 43" lengths: match your rack's depth.
Rogue SAML-24 Monster Lite Safety Spotter ArmsFits per specs3x3" uprights, 5/8" pin in 5/8" holes.
Locked with 5/8 hitch pins (included).
Bells of Steel Spotter Arms (Hydra)Fits per specs3x3" uprights, 5/8" pin in 5/8" holes.
Bells of Steel: fits non-BoS racks with true 3x3 uprights and 5/8 holes.
Titan X-3 Series Spotter ArmsFits per specs3x3" uprights, 5/8" pin in 5/8" holes.
24" arms with quick-pin adaptors. Pin size from the X-3 series spec.