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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 trailer is engineered for performance, featuring a 45-ton capacity, a 44' overall length, and a unique expandable wheel area that 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 suspension provide 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 axles and disc brakes on all four axles contribute to reliable stopping power and smoother rides.
Whether you call it a 16-tire trailer or a trunnion rig, this XL90MGX expandable trailer delivers 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.
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
EXPANDABLE WHEEL AREA
- Expandable wheel area to extend from 102" wide to 120" wide
- 40" wide bolsters between axles
- (2) 6' air cylinders
- Chain hooks
AXLES & SUSPENSION
- Axles: 25,000 lbs nominal trunion axles
- Axle Spacing: 69"
- Suspension: Walking Beam
- ABS: 2S1M with air brakes on 4 axles
- Brakes: Pan 17 disc
WHEELS & TIRES
- Tires: 235/75R/17.5
- Wheels: 6.75 x 17.5 8-hole pilot polished aluminum outer wheels, milled inside wheels
- PSI tire inflation
LIGHTING & ELECTRICAL
- 12V sealed Grote system with 3 taillight package
- 4" amber strobe to be used as 3rd taillight
- 40 ton capacity
- Aluminum wheels
- Tandem axle
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