Steady over rough terrain
The adjustable internal mechanism is designed to stay seated through trail vibration and repeated impacts.
Frost White
Regular price
$34.00
Regular price
Sale price
$34.00
Unit price
per
stz cutzz
STZ LockCore — Universal Handlebar Inserts
Frost White
Regular price
$34.00
Regular price
Sale price
$34.00
Unit price
per
DOWNHILL BENEFITS
More confidence at the bar ends.
LockCore keeps the handlebar ends neatly finished when the trail gets rough. Its low profile sits cleanly beside your grips without a bulky plug protruding near your hands.
Smooth beside your hands
The low-profile outer face closes the bar end neatly without adding a bulky extension beside your grip.
Light and unobtrusive
Lightweight construction finishes both sides without changing the shape or feel of your grips.
Rider note: LockCore finishes the bar ends. Hand traction and fatigue depend primarily on grips, gloves, suspension, pressure, and riding position.
STZ LOCKCORE
Finish the cockpit. Lock it in.
An ultra-light pair of inserts that tightens from inside the handlebar. Clean profile, adjustable hold, and finishes made to complete your build.
Sold as a pair
A SMALL DETAIL YOU NOTICE
It should not work loose mid-ride.
Basic plugs rely almost entirely on friction. LockCore sits in the open end and tightens from inside, creating a more controlled hold without adding unnecessary bulk.
Low-profile shape finishes the handlebar cleanly
Adjustable hold, not only a push fit
Lightweight construction for everyday riding
Removable for service or a color change
HOW IT WORKS
It expands inside. It stays clean outside.
As the center screw is tightened, the internal mechanism increases its grip against the handlebar wall. The result is a stable, tidy finish that can be checked and retightened when needed.
Tighten gradually with a hand tool. Do not use power tools or force the screw.
COMPATIBILITY CHECK
Will it fit my bike?
LockCore is designed for most standard bicycle handlebars with open ends and a clear, round internal cavity.
Usually compatible
- Mountain, gravel, road, BMX, and commuter bars
- Open ends with no fixed end cap
- Round, accessible internal cavity
Check before ordering
- Remove the current plug and inspect both ends
- No internal part should block the opening
- Closed bars or unusual internal shapes may not be compatible
INSTALLATION
Three straightforward steps.
1. Open
Remove the current plugs and clean inside both handlebar ends.
2. Insert
Place each LockCore straight and flush with the bar end.
3. Tighten
Tighten gradually until secure. Check the fit before riding.
FINISHES
Match it. Or make it stand out.
Choose a classic single color, a two-tone combination, or a premium finish. The variant image changes with your selection so you can check the look before buying.
Single color
White or black. Clean and direct.
Price €27.99
Dual color
Black and white or white and black.
Price €29.99
Premium colors
Eight finishes built around your setup.
Price €34.99BUILT TO RIDE
Light where it matters. Firm where it counts.
01
Strong material
3D printed from a lightweight, durable material for an everyday bike component.
02
Serviceable fit
The screw system can be checked, adjusted, and removed whenever needed.
03
Finished bar ends
Helps cover the open handlebar ends and leaves a tidy outer surface.
WHY LOCKCORE
More control than a basic push plug.
| Feature | LockCore | Basic push plug |
|---|---|---|
| Retention | Adjustable internal mechanism | Relies on friction |
| Service | Can be checked and retightened | No adjustment |
| Finish options | 12 combinations | Usually limited |
| Removal | Loosen and remove | Pull or pry |
IN THE BOX
Everything needed to finish both sides.
You receive 2 STZ LockCore inserts with their locking system. Choose your finish above; one insert completes each side of the handlebar.
FREQUENTLY ASKED
Before you add to cart.
Will it fit every bike?
It is designed for most standard open-ended handlebars. Closed bars, internal obstructions, or unusual internal shapes may not be compatible.
Does the price include two?
Yes. LockCore is sold as a pair to finish both handlebar ends.
Can I remove it later?
Yes. Loosen the screw with the correct hand tool and carefully remove the insert.
Which color will I receive?
The selected variant is the finish you will receive. Check the variant name and image before adding it to cart.
Where can I check shipping and returns?
Timing and cost depend on your delivery address. Use the policy links in the footer for the full terms.
READY FOR THE LAST DETAIL
Choose the finish that completes your bike.
Pick your color, confirm the bar ends are open, and finish both sides in minutes.