Vulcan Absolute Training Bumper Plates
Virgin rubber bumpers accurate to within 10 grams, with a shot-peened zinc-plated steel insert and thickness published per size.
Specs
| Plate diameter | 450 mm (IWF standard) |
|---|---|
| Weight tolerance | Within 10 grams of claimed weight |
| Shore hardness | 88 to 90 |
| Collar opening | 50.40 mm |
| Insert type | Steel disc, bright zinc plated, shot peened |
| Material | Virgin rubber |
| 10 kg thickness | 27.5 mm |
| 15 kg thickness | 42 mm |
These figures are copied from Vulcan Strength’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 Vulcan Strength before you buy.
Choose this one if
- You want competition-grade accuracy on a training plate
- You want thin bumpers so more weight fits on the sleeve
- You want a shot-peened insert rather than a plain one
The detail
"Within 10 grams of claimed weight" is a competition-plate tolerance on a training plate, and it is far tighter than the 1% almost everyone else publishes. One percent of a 20 kg plate is 200 grams. Ten grams is twenty times better, and it is the same standard REP's calibrated steel plates hold.
The plates are also unusually thin: 27.5 mm for a 10 kg and 42 mm for a 15 kg. Compare Rogue's HG 2.0, where a 45 lb plate is 82.5 mm. Thin plates mean more weight fits on the same sleeve, and Vulcan publishing thickness per size lets you do that arithmetic before buying.
Shot peening the insert is a detail nobody else mentions. Peening puts the surface into compression, which resists the crack initiation that eventually separates an insert from its rubber. Combined with bright zinc plating against corrosion, this is the part of a bumper plate that actually fails, treated properly.
Shore hardness 88 to 90 puts these on the harder side of training bumpers — harder than Rogue's Echo at 88 and softer than competition plates at 94. Harder means less bounce and less deformation on landing.
Virgin rubber rather than crumb or a blend is the material worth having: it does not shed, does not lose shape, and holds its edge.
At 450 mm the diameter is the IWF standard, so the bar sits at the correct height off the floor. The 50.40 mm collar opening slides onto any Olympic sleeve.
Vulcan does not publish a warranty term for these plates on the listing. Worth asking, since it is the number that tells you what they expect the rubber to do.