Giant Lifting Base Bumper Plates
Virgin rubber bumpers facility-tested to 10,000 drops from 8 feet, with stainless inserts and raised white lettering.
Specs
| Material | Virgin rubber with stainless steel insert |
|---|---|
| Colour | Black with bright white lettering |
| Tested | Facility tested, 10,000 drops from 8 ft |
| Tolerance | ±3% on 10, 25, 35 and 45 lb |
| Diameter | 450 mm (17.72 in) for 45, 35 and 25 lb; 445 mm (17.51 in) for 15 and 10 lb |
| Insert | 50.4 mm (1.98 in), stainless steel |
| Hole size | 2 in |
| Plate thickness | 10 lb — 0.94 in; 15 lb — 1.13 in; 25 lb — 1.63 in; 35 lb — 2.25 in; 45 lb — 2.81 in |
| Warranty | 3 years on 25, 35 and 45 lb; 1 year on 10 and 15 lb — home and commercial |
These figures are copied from Giant Lifting’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 Giant Lifting before you buy.
Choose this one if
- You want a drop-test figure rather than a marketing claim
- You want stainless inserts and virgin rubber at a mid price
- You want raised lettering that will not wear off
The detail
"Facility tested, 10,000 drops from 8 feet" is the most concrete durability claim on this site. Every bumper manufacturer says their plates are tough; almost none publish a test protocol. Ten thousand drops from eight feet is a number you can hold them to.
Stainless steel inserts are the right material at the part that takes every impact and every slide onto a sleeve — stainless does not rust when a garage plate spends a winter next to a damp wall.
Raised lettering rather than printed is a genuine durability detail, and Giant explains the reasoning: raised text prevents friction points, so the face of the plate does not scuff where it contacts its neighbour. Printed numbers wear off within a couple of years.
Publishing thickness for all five sizes is unusually useful — a 45 at 2.81 inches, a 10 at 0.94. That is what decides whether your bar's loadable sleeve holds what you need.
±3% tolerance is loose, and it is the honest weak point here. Three percent of a 45 lb plate is 1.35 lb, against 1% on most competition-grade plates and ±10 g on Vulcan's Absolute. If you need accuracy, this is not the plate.
The warranty ladder tells you where the risk is: 3 years on 25 to 45 lb, 1 year on the 10 and 15. Small bumpers have less rubber around the insert and fail sooner — universal, and honestly stated. Do not drop 10s alone on the bar.
The 15 and 10 lb plates are 445 mm rather than 450, so avoid loading them alone.
The Contrast plates are the same construction with colour-coded lettering.