Grove was the first manufacturer to produce a 100 t capacity crane on four axles when it introduced the GMK4100L. Now, the new GMK4100L-1 has raised the bar even higher with some notable improvements. The GMK4100L-1 not only offers the best load charts in this class in its maximum counterweight configuration, but also in its most common taxi configuration with a weight of less than 12 t per axle (a common axle load limit in many countries). Compared with the GMK4100L, the new GMK4100L-1 delivers 6.9 per cent better load charts overall when in its 26.2 t maximum counterweight configuration. In the taxi configuration with a 6.7t counterweight, the GMK4100L-1 boasts an increase of 9.3 per cent improved performance. Even when operated with the maximum roadable 19.9 t counterweight for up to 16.5 t per axle, the crane sets a new benchmark in its class.

The GMK4100L-1 is more compact than its predecessor, so easier to access narrow job sites. With 14-inch tyres, the crane boasts a 2.55 m width versus the 2.75 m of the GMK4100L. Overall, it is also 0.5 m shorter, making it more manoeuverable on congested job sites.