Kettlebell Shelf Rubber Liner
Protects Both Sides
Your bells and your powder coat
Non-Slip Surface
Bells stay where you put them
Quieter Racking
Dampens the clang
Sold Individually
Two needed per tier
A rubber liner that drops onto a Synergy kettlebell shelf. It stops cast iron and powder coat from grinding against each other, takes the noise out of racking a heavy bell, and grips enough that nothing shifts once it is set down. Black only, and sold as single liners rather than pairs, so order two for every tier you are covering.
Designed & Built in Florida
Every rack is made to order and manufactured in-house to ensure premium quality.
Protect Your Equipment
Cast iron against powder coat is how shelves get chipped and bells get scratched. A rubber layer between the two keeps both looking new for far longer than they otherwise would.
Noise Dampening
Racking a heavy bell onto bare steel is loud, and it is louder again in a garage or basement. Rubber absorbs most of that, which matters if you train early or share walls with anyone.
Non-Slip Grip
The rubber surface holds a bell where you set it down instead of letting it drift toward the shelf edge. Small thing, but it is the difference between tidy storage and a bell finding the floor.
Order Two Per Tier
Every kettlebell tier is built from two shelves, and a liner covers one shelf. So a three tier rack takes six liners and a four tier rack takes eight. Each liner is sold on its own.
Sized to the Shelf
Cut to 18 inches long by 10 inches wide to sit flat on a Synergy kettlebell shelf, with no trimming, adhesive, or fastening needed. Set it in place and load the shelf.
Nothing to Install
There is no assembly. Lay the liner on the shelf and you are finished, which also means you can lift it out to clean underneath or move it to another shelf later.
| Model Number | KBSHLRBL |
| Dimensions | 18" L × 10" W |
| Material | Rubber |
| Color | Black only |
| Sold As | Single liner, not a pair |
| Coverage | One liner covers one shelf. Two shelves per tier |
| Installation | Drop in place, no fasteners |
| Country of Origin | Designed & built in Florida, USA |
Compatible With
| Kettlebell Shelves | Synergy kettlebell shelves on the Alpha KB, Alpha PK and Delta PK racks |
| Alpha KB 3-Tier | Six liners for full coverage |
| Alpha KB 4-Tier | Eight liners for full coverage |
| What's in the Box | 1 rubber liner |
No separate assembly document is needed for this part. Mounting hardware and fitting instructions are included in the box.
Frequently Asked Questions
One single liner. Not a pair, and not a set.
This is the most common ordering mistake on this product, so it is worth saying plainly: if you want to cover a full tier you need two, because every kettlebell tier is built from two shelves.
This is the most common ordering mistake on this product, so it is worth saying plainly: if you want to cover a full tier you need two, because every kettlebell tier is built from two shelves.
Two per tier.
A three tier Alpha KB takes six liners for full coverage. A four tier takes eight. If you only want to line the shelves you use most, two per tier still applies to whichever tiers you pick.
A three tier Alpha KB takes six liners for full coverage. A four tier takes eight. If you only want to line the shelves you use most, two per tier still applies to whichever tiers you pick.
It is cut to 18 inches by 10 inches to sit flat on a Synergy kettlebell shelf. That covers the kettlebell shelves on the Alpha KB, the Alpha PK and the Delta PK.
Black only. The liner sits under your bells rather than being a visible part of the rack, so it stays neutral against every one of the frame colors.
Yes, particularly with heavier bells. Steel on steel rings; rubber absorbs most of that impact instead. It will not make a loaded rack silent, but it takes the sharp edge off every rack and unrack.
That is what the grip is for. The rubber surface holds a bell where you set it down rather than letting it creep, which matters most on the upper tiers where you are placing bells you cannot fully see.
You do not, really. Lay it on the shelf and it is done. Nothing to bolt, nothing to glue, and it lifts straight back out if you want to clean the shelf or move the liner elsewhere.