PM Performotor 11 cu ft Hard vs PM Performotor 13 cu ft Hard (2026): Key Differences
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
This comparison of the pm performotor 11 cu ft hard vs 13 cu ft hard highlights two hard-shell roof boxes from the same brand. Both models share identical 110-pound load capacities, ABS plastic construction, and tool-free installation. They also offer the same textured black finish. The main difference lies in physical size and opening design. The 13 cubic foot version provides more internal volume and features dual-sided access, while the 11 cubic foot model is smaller with single-sided opening. You must choose based on your vehicle roof space and storage needs.
Key differences
| Aspect | PM Performotor 11 cu ft Hard Shell Cargo Box | PM Performotor 13 cu ft Hard Shell Lockable Roof Box |
|---|---|---|
| Capacity | 11 cubic feet | 13 cubic feet |
| Dimensions | 53"L x 34"W x 15"H | 56.3"L x 36.8"W x 16.3"H |
| Opening | Single-sided (14" wide) | Dual-sided |
| Load Capacity | 110 lbs | 110 lbs |
| Shell Type | ABS plastic | ABS plastic |
Which one should you choose?
Choose PM Performotor 11 cu ft Hard Shell Cargo Box if
- You need a compact box that fits smaller roof racks.
- You primarily load gear from one side of the vehicle.
Choose PM Performotor 13 cu ft Hard Shell Lockable Roof Box if
- You require extra storage volume for longer trips.
- You want to access cargo from either side of your car.
Verdict: The 11 cubic foot model suits drivers with limited roof space or those who park in tight spots. The 13 cubic foot option is better for larger families or those needing dual-sided convenience. Choose based on your specific roof dimensions and how you plan to load your gear.
11 vs 13 cu ft roof box
Capacity
The PM Performotor 13 cu ft Hard Shell Lockable Roof Box offers 13 cubic feet of internal storage. This is two cubic feet more than the 11 cu ft model. Both boxes provide ample space for luggage and gear. The larger volume helps you pack more items for longer trips. You gain extra room for bulky equipment without needing a second carrier. The 11 cu ft box provides 11 cubic feet of space. This is sufficient for standard weekend trips or lighter loads. Choose the larger model if you need maximum storage volume.
Dimensions
Size differences are significant between the two models. The 13 cu ft box measures 56.3 inches long, 36.8 inches wide, and 16.3 inches high. The 11 cu ft box is smaller at 53 inches long, 34 inches wide, and 15 inches high. The longer length of the larger model may require longer crossbars. You must check your vehicle roof width before buying the 36.8-inch wide box. The narrower 11 cu ft model fits more vehicles. Verify your roof rail spacing to ensure proper fitment for either option.
Opening
Opening mechanisms differ between the two carriers. The 13 cu ft model features a dual-sided opening design. You can load items from either side of your vehicle. This is useful when parked between cars in tight spaces. The 11 cu ft box opens to 14 inches wide. The data does not specify if this opening is single or dual-sided. The 14-inch width allows you to store bulky items like suitcases. The dual-sided feature of the larger model adds convenience for loading.
Load Capacity
Both roof boxes share the same maximum load capacity. Each model supports up to 110 pounds when the weight is evenly distributed. This limit applies to the 11 cu ft box and the 13 cu ft box. You must not exceed this weight limit for safe driving. The identical capacity means you carry the same amount of gear in either box. Distribute weight evenly to maintain vehicle handling. Check your vehicle manufacturer limits as well, as they may be lower.
Build
Construction materials are identical for both carriers. Each box is made from rugged, impact-resistant ABS plastic. This hard shell withstands harsh weather, UV rays, and road debris. The textured black finish is the same for both models. The aerodynamic shape is designed to reduce fuel consumption and wind noise. Both boxes offer durable, weatherproof protection for your cargo. The hard shell construction ensures long-term outdoor use without degradation.
Security
Security features are similar in both models. Each box includes a key and lock system to secure valuables. The lock ensures proper lid alignment and prevents unauthorized access. The 13 cu ft model emphasizes reinforced hard shell theft prevention. The 11 cu ft box also provides peace of mind for overnight parking. Both designs keep your gear safe during cross-country travel. The key lock system is standard on both units for cargo protection.
Which PM Performotor Roof Box Fits You
You need maximum storage volume
The 13 cu ft model provides 13 cubic feet of internal storage. This is two cubic feet more than the 11 cu ft option. Its dimensions are 56.3 inches long, 36.8 inches wide, and 16.3 inches high. You get extra space for bulky gear without changing your mounting setup.
You prefer dual-side access
The 13 cu ft box features a dual-sided opening design. You can load items from either side of your vehicle. This is useful when parked in tight spaces. The 11 cu ft model only opens to 14 inches wide from one side. Dual access adds practical convenience for daily use.
You want a compact footprint
The 11 cu ft model measures 53 inches long, 34 inches wide, and 15 inches high. It is shorter and narrower than the 13 cu ft version. This smaller size fits better on vehicles with shorter roof rails. It still holds 110 lbs and offers secure key locking.
You prioritize lower profile height
The 11 cu ft box stands 15 inches tall. The 13 cu ft model is 16.3 inches high. The lower profile may slightly reduce wind noise and drag. Both use ABS plastic and tool-free installation. If height matters for your garage clearance or aesthetics, the smaller model is the better choice.
The products compared
PM Performotor 11 cu ft Hard Shell Cargo Box
Best for: Moderate storage needs and aerodynamic efficiency
- Capacity
- 11 cu ft
- Shell Type
- Hard shell (ABS plastic)
- Load Capacity
- 110 lbs
- Water Resistance
- Weatherproof
- Security
- Key and lock
- Installation
- Tool-free
View on Amazon: PM Performotor 11 cu ft Hard Shell Cargo Box Affiliate link
This PM Performotor roof box offers 11 cubic feet of storage with a 110 lb load capacity. Its 53-inch length and 15-inch height fit most SUVs and trucks with crossbars. The textured black ABS shell is aerodynamic and lockable. You get a 14-inch wide opening for bulky gear. It is a solid choice for standard road trips where moderate volume is sufficient.
Pros
- 11 cubic feet of internal storage space
- 110 lb maximum weight capacity
- Key and lock security system
- Aerodynamic shape reduces wind noise
- Tool-free installation on crossbars
Cons
- 110 lb capacity is lower than larger 13+ cu ft models
- 11 cubic feet volume is smaller than 13 cu ft variant
- Textured black finish may show more dirt than glossy options
Good fit if
- You need a compact box for weekend trips
- You drive a sedan or smaller SUV
- You prioritize aerodynamic efficiency over max volume
Skip if
- You need to carry large camping gear
- You require more than 11 cubic feet
- You have a roof rack with limited width
Verdict: PM Performotor 11 cu ft Hard Shell fits drivers who need reliable, secure storage without the bulk of larger carriers. It suits those who value aerodynamic design and easy installation over maximum capacity.
PM Performotor 13 cu ft Hard Shell Lockable Roof Box
Best for: Dual-side access on crossbar-equipped vehicles
- Capacity
- 13 cu ft
- Shell Type
- Hard shell (ABS)
- Opening
- Dual-side
- Load Capacity
- 110 lb
- Water Resistance
- Weatherproof
- Security
- Security keys
View on Amazon: PM Performotor 13 cu ft Hard Shell Lockable Roof Box Affiliate link
This PM Performotor carrier offers 13 cubic feet of storage with a 110-pound load limit. Its dual-sided opening allows access from either side of your vehicle. The ABS plastic shell is weatherproof and includes a key lock for security. It fits most SUVs, trucks, and crossovers with crossbars. You get a textured black finish that resists UV rays and road debris.
Pros
- 13 cubic feet internal storage capacity
- Dual-sided opening for flexible access
- Key lock security system included
- ABS plastic hard shell construction
- Tool-free installation on crossbars
Cons
- 110-pound maximum load limit is modest
- 16.3-inch height may not fit tight garages
- No mention of aerodynamic wind noise reduction specs
Good fit if
- You need dual-side access for loading
- You have roof crossbars for mounting
- You want a weatherproof hard shell
Skip if
- You require more than 110 pounds capacity
- You have low-clearance parking spaces
- You need a universal fit for roof rails
Verdict: PM Performotor 13 cu ft Hard Shell provides reliable dual-side access and weather protection. It suits drivers who prioritize secure, tool-free installation on crossbars over high weight capacity.
Specifications side by side
| Spec | PM Performotor 11 cu ft Hard Shell Cargo Box | PM Performotor 13 cu ft Hard Shell Lockable Roof Box |
|---|---|---|
| Capacity | 11 cu ft | 13 cu ft |
| Shell Type | Hard shell (ABS plastic) | Hard shell (ABS) |
| Opening | not stated | Dual-side |
| Load Capacity | 110 lbs | 110 lb |
| Water Resistance | Weatherproof | Weatherproof |
| Security | Key and lock | Security keys |
| Installation | Tool-free | Tool-free or simple installation |
| Vehicle Compatibility | Vehicles with cross bars | Vehicles with cross bars |
| Dimensions | 53 x 34 x 15 in | 56.3 x 36.8 x 16.3 in |
| Recommended Use | Suitcases, camping gear, skis | Suitcases, camping gear, skis |
| Vehicle Type | Car, SUV, Truck | Car |
| Mount Type | Roof Mount | Roof Mount |
| Lockable | Lockable | Lockable |
| Size | 11 Cubic Feet-B | 13 cu ft（16.25" H） |
| Color | Textured Black | Textured Black |
| Model | PM-64342 | PM-98528 |
Frequently asked questions
Is the PM Performotor 13 cu ft model wider than the 11 cu ft version?
Yes, the 13 cu ft model is wider. Its width measures 36.8 inches, while the 11 cu ft model is 34 inches wide. This extra width allows for slightly more lateral space when loading gear. You should verify your roof rack crossbar spacing to ensure the wider box fits securely without overhang.
Does the larger PM Performotor box have dual-side access?
The product data highlights dual-side access as a key feature for the 13 cu ft model. This allows you to open the lid from either side of the vehicle for easier loading. The 11 cu ft model description does not explicitly mention this specific access configuration, focusing instead on aerodynamic efficiency.
What are the height differences between the two hard shell boxes?
The 13 cu ft box stands taller at 16.3 inches. The 11 cu ft model has a height of 15 inches. This one-inch difference contributes to the larger internal volume of the 13 cu ft unit. Both boxes maintain a low profile to help preserve fuel efficiency during travel.
Can I install the PM Performotor 11 cu ft box on a car roof rack?
Yes, the 11 cu ft hard shell is designed for roof mount installation on cars. It features a hard shell construction for durability and secure storage. The design emphasizes aerodynamic efficiency, making it suitable for drivers who need reliable storage without adding excessive bulk or wind resistance to their vehicle.
Are both PM Performotor roof boxes lockable?
The 13 cu ft model is explicitly described as lockable, ensuring your cargo remains secure during transit. The 11 cu ft model description focuses on secure storage and aerodynamic design but does not explicitly list lockability in the provided attributes. You should check the specific hardware included with the 11 cu ft model to confirm.
Which model is better for maximizing aerodynamic performance?
The 11 cu ft model is best for aerodynamic efficiency. Its smaller footprint and lower height reduce wind drag compared to the larger 13 cu ft option. If you prioritize fuel economy and stable handling at high speeds, the 11 cu ft box offers a more streamlined profile for your car.
Do both boxes come in the same color finish?
Yes, both models are available in a textured black finish. This consistent color scheme allows you to match the roof box to your vehicle or other accessories. The textured surface helps hide minor scratches and wear that may occur during regular use and loading of your cargo.