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5 x 10 Top Hat Derby SR 3.5K Utility Trailer – Ready To Work!

The Top Hat Derby SR (Standard Rail) is Top Hat’s most popular single-axle utility trailer. It sits right in the "sweet spot" of their lineup—tougher than the "Derby Jr" but more affordable than the heavy pipe-top models. It’s available in two main configurations: the Derby SR Angle (angle iron top rail) and the Derby SR Pipe (round pipe top rail).

KEY STANDARD FEATURES (DERBY SR 3.5K)

3,500 lb Dexter EZ-Lube Axle Standard equipment includes a single cambered Dexter axle.

The Benefit: By rating the trailer at a 2,990 lb GVWR, it stays under the legal limit that requires electric brakes and annual inspections in many states. The EZ-Lube hubs allow you to grease the bearings with a simple grease gun without disassembling the hub.

48" Lay-N-Tailgate with Spring Assist The rear features a 4-foot heavy-duty mesh ramp gate that can fold forward flat onto the deck.

The Benefit: When you're towing the trailer empty, you can lay the gate flat to reduce wind drag and improve fuel economy. The Coil Spring Assist is a lifesaver for your back, making the 48" gate feel like it weighs only a few pounds.

Frame Structure: 3x2x3/16 Angle The main frame and crossmembers are built from 3/16" thick angle iron.

The Benefit: This is a significant upgrade over "big box store" trailers that often use 1/8" or thinner steel. It provides a rigid, "no-flex" foundation that won't warp when you drive a heavy zero-turn mower or ATV onto the deck.

2" Pressure Treated Pine Floor The deck is made of thick, longitudinal pressure-treated planks.

The Benefit: Wood floors provide excellent traction for tires and allow you to easily screw down custom wheel chocks or d-rings. The pressure treatment prevents rot and decay from exposure to the elements.

LED Flush Mount Lighting Every 2026 Derby SR comes standard with sealed LED lights.

The Benefit: Unlike traditional incandescent bulbs, LEDs are vibration-resistant and draw very little power. Since they are flush-mounted, they are much less likely to get knocked off or cracked while maneuvering in tight spaces.

Wrapped Tongue (12'–14' Models) On lengths 12 feet and longer, the 4" channel tongue is "wrapped" back into the frame.

The Benefit: Many budget trailers just butt-weld the tongue to the front crossmember. A wrapped tongue distributes the towing stress further back into the trailer frame, preventing the front of the trailer from cracking under heavy tongue weight.

PERFECT FOR

The Top Hat Derby SR is the ultimate "Weekend Warrior" and "Small Biz" trailer. It is the primary choice for homeowners with ATVs/UTVs, residential landscapers, and property managers who need a reliable, long-lasting trailer that can be towed by almost any SUV or half-ton truck.

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