XL Specialized XL90MGX 16-Tire Expando Trunnion Lowboy Trailer – 45 Ton Capacity

Looking for a heavy-duty trailer that can handle serious loads with precision and stability? The XL Specialized XL90MGX lowboy traileris engineered for performance, featuring a 45-ton capacity, a 44' overall length, and a unique expandable wheel areathat stretches from 102" to 120" wide for maximum versatility. Commonly known as a 16-tire lowboy, expando trailer, or trunnion-style lowboy, this trailer is built to haul the heaviest equipment across tough terrain with confidence.

Its mechanical gooseneck, Apitong decking, and walking beam suspensionprovide unmatched durability, while the bucket well, rear ramps, and air cylinder-actuated bolster system ensure ease of loading and adaptability on the job site. Moreover, the XL Specialized XL90MGX trailer trunnion axlesand disc brakes on all four axles contribute to reliable stopping power and smoother rides.

Whether you call it a 16-tire traileror a trunnion rig, this XL90MGX expandable trailerdelivers big on capacity, flexibility, and rugged performance. It’s ideal for contractors, heavy equipment movers, and anyone who needs serious strength and spread axle configuration.

Midco Sales is the XL Specialized trailer dealer in Arizona .

Full Specs

DIMENSIONS & CAPACITY

Length: 44'
Width: 102"
Capacity: 45 tons (90,000 lb distributed, 90,000 lb in 16')

GOOSENECK

Length: 10' 5"
Kingpin Setting: 16", 30"
Swing Clearance: 98", 84"
5th Wheel Height: 50"
Decking: Ramps filled w/ apitong
Work light at rear of gooseneck
Chain hooks

MAIN DECK

Length: 23' 1" (21'4" clear deck)
Loaded Deck Height: 23"
Ground Clearance: 8"
6' bucket well w/ chain slots
Decking: 2" apitong, raised, center covered
Crossmembers: Formed C-channel on 24" centers
Beams: (2) fab I-beams 15"
D-Rings: (6) bent D-rings per side
Chain hooks
Ramps: Tapers to 10.5"

REAR DECK

Length: 10' 6"
Stubbed beavertail with traction aids
Loaded Deck Height: 32"
D-Rings: (1) bent D-ring per side in wheel area, (1) flat D-ring on center bolster per side
Steel rear loading ramps