Leer 100XR Topper – GMC Sierra 1500

LEER 100XR is a premium cab-high fiberglass truck cap designed for truck owners who want a factory-style appearance combined with advanced features and convenience. For the GMC Sierra 1500, the 100XR is one of LEER’s most popular models due to its flush-mounted side windows, frameless rear door, and integrated styling.

Key Features

Flush-Mounted Side Windows

Unlike the standard LEER 100R, the 100XR features frameless, flush-mounted side windows that create a sleek, modern appearance.

Fiberglass Construction

Benefits include:

• Strong, durable design
• Automotive-grade finish
• Paint-to-match color options
• Excellent weather resistance

Remote Keyless Entry

A standout feature of the 100XR is its integrated locking system that can often be synchronized with the truck’s power door locks.

Frameless Rear Glass Door

The rear hatch includes:

• Tinted glass
• Rotary latching system
• Secure locking mechanism
• Gas-assisted opening

Compatibility with GMC Sierra 1500

The LEER 100XR is available for multiple Sierra 1500 generations and bed sizes, including:

Fitment depends on:

• Model year
• Cab style (Regular, Double, Crew)
• Bed length
• Whether the truck has special bed systems such as CarbonPro

Always verify exact fitment before purchasing a new or used topper.

Standard Features

Most 100XR models include:

• Framed front picture window
• Interior headliner
• LED third brake light
• Tinted side windows
• Rotary latch rear door
• Weather-resistant seals
• Installation hardware

Popular Upgrades

Many Sierra owners add:

• Roof rack tracks
• Interior LED lighting
• Sliding front window
• Gear nets and organizers
• Ventilation options
• Heavy-duty roof reinforcement

Common Uses

Work Applications

Perfect for securing:

• Tools
• Equipment
• Contractor supplies

Outdoor Recreation

Popular among:

• Campers
• Hunters
• Anglers
• Overlanders

Daily Driving

Provides secure, weather-protected cargo space for everyday use.

Pricing varies based on:

• Sierra model year
• Bed size
• Paint matching
• Installed options
• Regional market demand

Maintenance Tips

To keep a LEER 100XR in excellent condition:

1. Wash regularly using automotive soap.
2. Lubricate hinges and locks periodically.
3. Inspect weather seals annually.
4. Check mounting clamps and hardware.
5. Clean glass and window tracks regularly.

Bottom Line

The LEER 100XR Topper for the GMC Sierra 1500 is a premium fiberglass cap that combines security, durability, and upscale styling. Its flush-mounted windows, remote-locking capability, and factory-like appearance make it an excellent choice for truck owners seeking a high-end topper for work, travel, camping, or everyday cargo protection.