STOCK PHOTO USED, The GR-900XL-4 features advanced monitoring, reduced emissions and fuel consumption, and maximized outrigger extensions – all in a 100 US ton-capacity crane., MAIN BOOM LENGTH: 39.4 ft – 154.2 ft, BOOM EXTENSION: 33.2 ft – 58.1 ft, OUTRIGGER BASES: 24.1 ft x 23.9 ft, HOIST LINE PULL: 20,000 lbs, MAX RADIUS: 160.0 ft, DIMENSIONS: 565.9 in L x 130.5 in W x 149.8 in H, AXLES: 2, ENGINE: Cummins, DRIVE: 4x4x4, Call Empire Crane for a quote.