Product Specification

Specification	Details
Product Type	Crossbar with T-slot system
Material	Heavy-duty aluminum with powder-coated finish
Crossbar Dimensions	Approx. 2" height / 2.75" width
Base Dimensions	6" height / 5" width / 4" thickness
Adjustable Spacing	19" – 30" (anywhere along the cover rails)
Weight Capacity (On-Road)	Up to 500 lbs evenly distributed
Weight Capacity (Off-Road)	Up to 380 lbs evenly distributed
Mounting System	Bolt-on installation, no drilling required
Accessory Mounting	Dual-side T-slot channels
Compatibility	Works with most T-slot accessories and Yakima mounts

Truck Type	Length	Height
Full-Size Trucks (F-150, Ram, Tundra, Titan, Silverado, Sierra)	76"	7"
Mid-Size Trucks (Tacoma, Ranger, Colorado, Canyon, Frontier, RAMBOX, Maverick, Gladiator)	66"	7"

Truck Type

Length

Height

Full-Size Trucks

(F-150, Ram, Tundra, Titan, Silverado, Sierra)

76"

Mid-Size Trucks

(Tacoma, Ranger, Colorado, Canyon, Frontier, RAMBOX, Maverick, Gladiator)

66"

* When installed on RAMBOX trucks, the side storage boxes will open to approximately 75% capacity and will not fully extend. Please confirm this limitation before purchase.

Important Fitment Notice

By purchasing the Retrax mounting bolts for use with our rack system, you acknowledge and accept that this installation is considered a custom fit. The appearance and fitment may differ from the product photos shown.

The product images represent our rack installed on compatible Syneticusa bed covers, for which the mounting hardware is specifically designed. When used with other bed cover brands, including Retrax, modifications to the fitment or installation may be required, and the final appearance may vary.

Please review this information carefully before purchasing.

Crossbar with T-Slot – Built for Versatility & Strength

Upgrade your truck with a premium crossbar with T-slot, engineered for durability, flexibility, and seamless accessory mounting. Designed for both daily use and overland setups, this system provides a solid foundation for carrying gear while maintaining a clean, low-profile look.

Constructed from heavy-duty aluminum with a durable powder-coated finish, this truck bed crossbar system delivers long-lasting performance in all environments—whether on-road or off-road.

Built to Handle Real Loads

This crossbar with T-slot is designed for strength and adaptability. With a reinforced structure and integrated tie-down capability, it allows you to secure cargo with confidence.

Up to 500 lbs on-road capacity (evenly distributed)
Up to 380 lbs off-road capacity (evenly distributed)
Compatible with popular accessories including kayaks, bikes, rooftop tents, and cargo carriers

T-Slot System for Maximum Expandability

Each crossbar with T-slot features dual-side T-slot channels, allowing you to mount accessories quickly and securely.

T-slot channels on both sides of the crossbar
Easy mounting for racks, carriers, and overland gear
Compatible with most T-slot accessories and mounts

This design ensures your setup can grow with your needs—no limitations, no complicated modifications.

Optimized Design & Easy Installation

Engineered for convenience, this system features a bolt-on installation with no drilling required, making it ideal for quick upgrades.

Approximate 2-inch thick crossbar for added strength
Adjustable spacing between crossbars: anywhere along the tonneau cover rails
Quick-change mounting system for easy installation and removal

Note: For compatibility with Retrax tonneau covers featuring T-slot rails, a separate t-slot bolts purchase is required.

Crossbar

SYNETICUSA® CB Adjustable Crossbars Heavy Duty With T-Slot Channel