Weight Capacity of Front Runner Truck Bed Rack for 2025 Toyota Tundra
Updated 01/28/2026 | Published 01/06/2026
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Question:
What is the weight capacity of the rack? Can it accommodate a Thule car topper? I have a 2025 Tundra TRD Pro with the integrated rail systems.
asked by: David K
Expert Reply:
Hi David; the Front Runner Truck Bed Rack # FR36TJ has a capacity of 55 lbs per bar with the weight distributed evenly. Most of the Thule roof boxes like # TH614 (I'm assuming this is what you meant by car topper) max out at a crossbar width of 3-5/16" and these are 3-1/2" wide so you won't be able to clamp it on there.
Is roof box compatibility your main concern? If that is the case, you're better off with a rack like the Adarac M-Series # A65AG or the Yakima BedRock HD # Y01160-58. Both have a higher capacity and would be compatible with the Thule cargo box.
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Product Page this Question was Asked From
Front Runner Truck Bed Rack - 58" Crossbars - Qty 2
- Ladder Racks
- Truck Bed
- Fixed Rack
- Crossbar Rack
- Not Tonneau Compatible
- Mid-Cab Height
- Over the Bed
- No Drilling Required
- Front Runner
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Robin H.
1/27/2026
Hey David, what did you end up going with for your Tundra’s rail system—did one of the Adarac or Yakima racks work better with your Thule cargo box? Knowing how it turned out could help others trying to match a roof box to their truck rack.