Rosenbauer offers the Hendrickson Steertek™ NXT 45° cramp angle. We're the only apparatus manufacturer to offer three ackermann options: 195" - 225" - 250" wheelbases. Why is this important? If your rear tires don't follow the geometry of the front steering axle your chassis will push or drag the rear tires across the road surface. Losing optimal rear traction, causing significant tire scrub leading to tire damage and early replacement.