LEER 100R Truck Cap – Sleek Fiberglass Topper for Full-Size Pickups
The LEER 100R is our most aerodynamic fiberglass truck cap, engineered to seamlessly integrate with your pickup’s roofline while delivering premium cargo protection. We designed the 100R with a flush-mount stance and gradual taper that reduces drag and enhances fuel economy without sacrificing interior height.
This model is the top choice for truck owners who demand factory-level finish quality paired with everyday functionality. The 100R ships with color-matched automotive paint, carpeted headliner, tinted windows, and our proprietary front sliding window system for cab access. Every unit is backed by our limited lifetime warranty on structure and paint.
- One-piece reinforced fiberglass construction for maximum durability
- Flush-mount design with gradual taper to match OEM truck body lines
- Color-matched automotive paint in all major manufacturer colors
- Carpeted headliner with integrated LED dome light and wiring
- Tinted privacy glass on side and rear windows with screen vents
Fiberglass Construction & Paint Quality
We manufacture the LEER 100R using hand-laid fiberglass composite with structural ribs running the full length of the cap. This construction method delivers superior impact resistance compared to vacuum-formed alternatives while maintaining a lightweight profile that won’t overload your truck’s payload capacity.
Every 100R receives a multi-stage paint process identical to OEM automotive finishing. We apply corrosion-resistant primer, color-matched base coat, and two-stage clearcoat before wet-sanding and buffing to achieve a factory-depth shine. The finish is baked in industrial ovens for maximum adhesion and UV resistance that prevents fading over years of sun exposure.
Aerodynamic Design & Fuel Economy
The 100R’s flush-mount design sits level with your truck’s cab roof, eliminating the traditional gap that creates turbulence on standard raised caps. We engineered the rear taper at a 7-degree angle to guide airflow smoothly off the tailgate, reducing drag coefficient by up to 12% compared to our raised-roof models.
This aerodynamic profile translates to measurable fuel savings on highway driving. Independent testing shows the 100R can improve fuel economy by 0.5-1.2 MPG at sustained speeds above 55 mph compared to driving with an open bed. The low-profile stance also reduces wind noise and improves high-speed stability in crosswinds.
Security & Access Features
We equip every 100R with our commercial-grade rotary paddle latches featuring stainless steel mechanisms and hardened steel lock cylinders. All three rear latches key to match your truck’s ignition, so you carry one less key and maintain consistent security across your vehicle.
The front slider window includes a dual-lock system with independently keyed locks at both sides of the frame. This design prevents prying even if one lock is compromised, while still allowing quick access from inside the cab when you need to reach cargo without walking to the tailgate.
More LEER Truck Caps & Tonneau Covers
What people are saying
Common Questions About the LEER 100R
Yes, the 100R is fully compatible with spray-in bedliners from Line-X, Rhino Linings, and other major brands. Our clamp system adjusts to accommodate the additional thickness of spray coatings, typically 1/8 to 1/4 inch depending on application method.
You may need to slightly loosen the clamps during initial installation to account for the liner’s texture, then retighten after confirming proper seal compression. We include rubber gaskets that conform to textured surfaces and maintain a weather-tight seal even with aggressive spray patterns on the bed rails.
The LEER 100R accepts aftermarket roof rack systems designed for fiberglass truck caps. We recommend using track-style mounting systems that distribute load across multiple attachment points rather than concentrated tower mounts.
Popular compatible systems include Thule TracRac and Yakima OffGrid racks specifically engineered for fiberglass caps. These systems typically support 150-200 pounds of evenly distributed cargo when properly installed. We do not recommend drilling directly into the fiberglass for custom mounts, as this can compromise structural integrity and void warranty coverage.
Truck caps for pickup trucks provide significantly better security than soft or folding tonneau covers because they offer rigid walls, locking glass, and tamper-resistant latches on all access points. The LEER 100R features three keyed rotary latches at the rear door plus a dual-lock slider window, creating multiple security layers that are extremely difficult to breach without power tools.
Tonneau covers excel at weather protection and fuel economy but typically use tension clamps or slide locks that can be cut or pried with hand tools. If you regularly transport valuable equipment or tools, a locking fiberglass cap delivers substantially better theft deterrence than any tonneau design.
The primary difference is roofline design and rear window configuration. The 100R features our classic smooth-slope design with a framed rear window and maximum aerodynamic efficiency for fuel economy and reduced wind noise.
The 100XR uses a more aggressive sport-style roofline with a steeper rear taper and frameless wraparound rear glass for enhanced visibility. The XR sacrifices about 2 inches of interior height for styling but maintains the same fiberglass construction quality, paint finish, and security features as the 100R.
Yes, every LEER 100R includes our limited lifetime warranty covering the fiberglass structure and paint finish against defects in materials and workmanship for as long as you own the cap. This warranty covers delamination, paint failure, and structural cracks under normal use conditions.
Moving components including latches, hinges, and windows carry a three-year warranty from date of purchase. The warranty is transferable to subsequent owners if you sell your truck with the cap installed, which helps maintain resale value.
No, side door configurations must be specified at the time of order because they require different fiberglass molding and reinforcement during manufacturing. We offer the 100R in both non-side-door and side-door versions, but doors cannot be retrofitted to existing caps without compromising structural integrity.
If you think you might need side access in the future, we recommend ordering the side-door version initially. The door openings include automotive-style weatherseals and compression latches that maintain the same water-tight performance as the standard model while providing convenient curbside access.
The 100R weighs approximately 180-220 pounds depending on bed length, with short-bed models at the lower end and 8-foot models at the higher end. This weight is considered negligible for payload calculations on modern full-size pickups, which typically have payload capacities between 1,500 and 3,000 pounds.
For reference, the cap’s weight is equivalent to carrying one additional passenger. You’ll see minimal impact on suspension performance or braking distance, and the improved aerodynamics often offset any payload-related fuel economy loss during highway driving.