LEER 100XQ Truck Cap – Premium Fiberglass Cap with Flush-Mount Design
The LEER 100XQ represents the pinnacle of fiberglass truck cap engineering, combining flush-mount glass styling with aerodynamic contours that enhance both appearance and fuel efficiency. We designed the 100XQ to complement modern truck body lines while delivering the security and weather protection professional tradespeople and outdoor enthusiasts demand.
Our proprietary fiberglass composite construction resists fading, denting, and corrosion far better than aluminum alternatives, while the frameless glass design creates an uninterrupted sightline that elevates your truck's profile. Every 100XQ is custom-molded to match your specific truck make and model, ensuring factory-level fit and finish. Available in hundreds of OEM-matched colors and with multiple door configurations, the 100XQ adapts to how you work and play.
Premium design & construction details
Fiberglass Construction & Durability
We build every LEER 100XQ from proprietary layered fiberglass composite that outperforms conventional single-shell caps in both strength and longevity. The multi-layer construction creates a rigid structure that maintains its shape under heavy snow loads and resists the flex that causes paint cracks in lesser caps. Our gel-coat finish is applied during the molding process rather than painted afterward, which means color penetrates the entire outer layer rather than sitting as a surface coating vulnerable to chips.
This manufacturing method delivers exceptional UV resistance—100XQ caps installed in Arizona and Florida sun show minimal fading even after years of exposure. The fiberglass composite also dampens road noise and insulates cargo space better than aluminum, keeping temperature swings moderate whether you’re transporting temperature-sensitive equipment or camping gear. We back the structural integrity with a three-year limited warranty covering delamination and finish defects.
Flush-Mount Glass & Aerodynamics
Frameless Glass Design
The defining feature of the 100XQ is its flush-mount frameless glass, where windows sit level with the cap’s exterior surface rather than recessed behind a bulky frame. This creates smooth airflow along the entire truck profile, reducing drag and improving highway fuel economy by approximately 8-12% compared to driving with an uncovered bed. The glass itself is automotive-grade tempered safety glass with factory tinting that blocks 35% of visible light and 99% of UV rays.
Wind Tunnel Tested Contours
Our engineers refined the 100XQ roofline in wind tunnel testing to minimize lift and buffeting at highway speeds. The gentle slope from cab to tailgate keeps airflow attached rather than creating turbulent vortices, which reduces wind noise inside the cab and prevents the whistling common with flat-top cap designs. For drivers who frequently tow trailers, the improved aerodynamics translate to better stability in crosswinds and less mirror vibration.
Sizing, Fit & Installation
We manufacture the LEER 100XQ in molds specific to over 150 truck bed configurations, covering full-size pickups from Ford, Chevrolet, GMC, RAM, Toyota, and Nissan from model year 2000 forward. Each cap matches your truck’s exact bed length—whether 5.5-foot, 6.5-foot, or 8-foot—and contours precisely to the cab and bedrail profile, including accommodating spray-in bedliner thickness.
Installation requires no drilling into your truck bed. The 100XQ mounts via clamp-on brackets that grip the bedrail with adjustable pressure, distributing load evenly to prevent paint damage. Our authorized dealer network performs professional installation that includes sealing all mounting points with marine-grade butyl tape, routing wiring for interior lighting through factory grommet locations, and calibrating door alignment so latches engage smoothly without forcing. Most installations complete in 90 minutes, and the cap can be removed later without leaving permanent modifications if you sell your truck or want to swap caps seasonally.
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Common Questions About the LEER 100XQ
We manufacture the 100XQ for all major full-size pickup brands including Ford F-150, Chevrolet Silverado, GMC Sierra, RAM 1500/2500/3500, Toyota Tundra, and Nissan Titan from model year 2000 forward. Each cap is molded specifically for your truck's bed length (5.5-foot, 6.5-foot, or 8-foot) and year. Our dealer network verifies exact fitment before ordering to ensure the cap matches your cab style and bedrail contours perfectly, including accommodating spray-in bedliners.
The frameless glass sits level with the cap's exterior surface rather than recessed behind a raised frame, which allows air to flow smoothly over the entire truck profile without creating turbulent pockets. Wind tunnel testing shows this reduces drag by approximately 15% compared to traditional recessed-glass leer truck caps, translating to 8-12% better fuel economy at highway speeds. The improved airflow also reduces wind noise and minimizes lift that can affect handling during high-speed driving or when towing trailers.
While mechanically inclined owners can install the 100XQ using the included clamp-on mounting hardware, we strongly recommend professional installation through our authorized dealer network. Proper installation involves precise door alignment, careful weatherstrip compression, correct wiring routing for interior lighting, and applying marine-grade sealant at all mounting points to prevent leaks. Dealers complete installation in about 90 minutes and ensure warranty coverage remains valid. DIY installation errors can lead to wind noise, water intrusion, or door misalignment that's difficult to correct later.
Standard barn doors work best if you frequently load large items like furniture, motorcycles, or appliances—they provide wide-open access and swing 180 degrees. Choose 50/50 split doors if you want quick one-side access for grabbing tools or smaller cargo without fully exposing your bed. The single lift glass option suits contractors carrying long materials like lumber or conduit that slide in easily but don't require standing access. All configurations feature the same three-point locking system and weatherproofing, so the choice depends entirely on your typical cargo and access preferences.
Fiberglass composite offers several advantages for leer truck caps: it resists UV fading better than painted aluminum, maintains color through the gel-coat layer rather than surface paint that chips, provides superior insulation against temperature swings, and dampens road noise more effectively. Fiberglass is also more rigid, preventing the flex that causes stress cracks over time. Aluminum caps are lighter and less expensive initially, but fiberglass delivers better long-term durability and appearance retention, which is why we build all LEER premium caps from our proprietary composite material.
We include a three-year limited warranty covering structural delamination, gel-coat finish defects, and hardware failures under normal use. The warranty requires professional installation by an authorized LEER dealer and routine maintenance like cleaning weatherstrips and lubricating hinges. Paint finish is warranted against fading or peeling for three years when the cap is washed regularly and not exposed to harsh chemicals. Door hardware including latches and hinges carries a one-year replacement warranty. Specific coverage details and claim procedures are provided with your purchase documentation at the time of installation.
Yes, we offer factory-engineered roof rack systems rated for 300 pounds static load, specifically designed to integrate with the 100XQ's fiberglass structure without compromising integrity. The racks mount through reinforced hard points molded into the cap frame during manufacturing. You can also add side sliding windows, interior shelving systems, carpet or rhino-liner flooring, additional LED lighting, and custom tie-down D-rings. We recommend installing accessories through your LEER dealer to ensure proper mounting and maintain warranty coverage, though some aftermarket accessories designed for universal truck caps may also fit.