Line-X Tough Protection Built for Colorado and Canyon Bed Duty
The AX12029 Armor Flex hard folding tonneau cover brings genuine work truck durability to the 2023-2025 Chevrolet Colorado and GMC Canyon 5.2ft short bed. A factory-applied Line-X coating shrugs off scuffs, dents, and abrasion while the tri-fold panel design keeps cargo locked down and weather out. When you need full bed access, the AX12029 folds completely out of the way in seconds without leaving the tailgate hanging open to the elements.
Key Features
- Heavy-duty aluminum panels reinforced with a Line-X specialty coating for dent and scuff resistance
- Tri-fold hard cover design for full bed access when needed and secure coverage when closed
- Dual-action tailgate seal allows tailgate operation with the cover up or down
- Clamp-on installation with no drilling into the bed rails
- Automatic latching panels for quick one-handed operation
- Low-profile matte black finish that sits flush with the bed rails
- Locking cover works with the factory tailgate lock for added security
- Made in the USA with a manufacturer warranty backing the AX12029
Fitment Table
| Year Range |
Make |
Model |
| 2023-2025 |
Chevrolet |
Colorado |
| 2023-2025 |
GMC |
Canyon |
Specifications
| Detail |
Value |
| MPN |
AX12029 |
| Brand |
UnderCover |
| Bed Length |
5.2 ft (61.7 in) |
| Cover Style |
Armor Flex Hard Folding, Tri-Fold |
| Finish |
Matte Black with Line-X Coating |
| Installation |
Clamp-On, No Drilling |
| Locking |
Locks with Factory Tailgate Lock |
| Toolbox Compatible |
No |
| UPC |
Not publicly listed by manufacturer |
What's Included
- AX12029 Armor Flex tri-fold tonneau cover
- Clamp-on side rail hardware
- Weather stripping and drain tubes
- Tie-down strap clips
- Manufacturer installation instructions
About UnderCover
UnderCover designs and manufactures hard folding and one-piece tonneau covers engineered for durability without sacrificing style. Built in Missouri, UnderCover covers are known for tight tolerances, weather-sealed construction, and finishes that hold up to daily work truck use as well as weekend hauling.
FAQ
What is the AX12029?
The AX12029 is an UnderCover Armor Flex hard folding tonneau cover built for the 2023-2025 Chevrolet Colorado and GMC Canyon 5.2ft short bed. It features a Line-X coated tri-fold panel design with clamp-on installation.
Does the AX12029 fit both the Colorado and Canyon?
Yes, the AX12029 is designed to fit the 5.2ft short bed on both the 2023-2025 Chevrolet Colorado and GMC Canyon, since both trucks share the same bed dimensions.
Can I still use my tailgate with the AX12029 installed?
Yes, the dual-action tailgate seal lets you open and close the tailgate whether the cover is folded up or fully closed.
Does the AX12029 require drilling to install?
No, the AX12029 uses a clamp-on rail system that attaches to the bed rails without drilling into the truck bed.
Will the AX12029 work with a spray-in or drop-in bedliner?
The clamp-on rails are designed to work with most bedliners, though very thick drop-in liners can sometimes interfere with rail clamps. Check liner clearance at the bed rail before installing.
Is the AX12029 lockable?
Yes, the cover locks in conjunction with the factory tailgate lock, so securing the tailgate also secures the cover.
What finish does the AX12029 come in?
The AX12029 comes in a matte black finish with a Line-X coating applied to the panels for extra scuff and dent resistance.
Is the AX12029 compatible with a toolbox?
No, this cover is not toolbox compatible due to the tri-fold panel and rail design.
Install Instructions
- Install the included weather stripping along the front of the bed rail, stopping just before the bend
- Attach the side rails starting on the passenger side, positioning clips roughly six inches from the front, center, and near the tailgate
- Slide the rail forward until snug against the front of the bed and tighten the clamps evenly without overtightening
- Route the drain tubes to an open location outside the bed
- Install the front locking clips onto the rail channel
- Lay the folded cover onto the rails, unfold it, and center it evenly on both sides
- Close the tailgate slowly to seat the weather stripping against the tailgate seal
- Snug down the remaining rail clips on both sides, checking that the cover operates smoothly before finishing
