The Link Manufacturing TR50-HDT Heavy Duty Off-Highway Air-Ride Suspension is engineered specifically for off-highway and mining trailer applications and is designed to reduce axle and trailer stress, overall weight, and maintenance costs. Designed for a 17" ride height with +/- 4" of travel, the suspension is also available in other ride heights upon request. The TR50-HDT’s maximum axle spread is 60" at its 50K capacity, and can operate at up to 40 mph. Each TR50-HDT features three high-capacity air springs and the shocks help mitigate the dynamic forces that can damage trailers, axles, and wheel ends.