That’s 44MPH which is faster than several other models. With the 835 being a newer model, we haven‘t gotten much feedback on my 835 modifications, but the clutch is virtually the same as an 825, and we have successfully modified probably a hundred of them and reconditioned many hundreds of them.Presently 71 kmh on jd 835r 2020
Although it is correct that the top speed is limited based on engine RPM rather than vehicle speed, there is a little extra top speed available through clutch modification.How fast do you want to go? This will dictate the extent of modifications necessary to achieve.
The only way to increase speed is to increase engine RPM. Typically a small increase is possible, but anything worthwhile of a difference will likely require different valve springs at a minimum.
There are much faster XUV's out there, so it would have been wise to shop around before purchasing a Gator. Aftermarket support is minimal on the Green ones.