Large and heavy-duty petrol garden tillers feature a powerful 4-stroke engine, but also a transmission made entirely of gears in an oil bath. This is the best transmission for a garden tiller: it makes it especially useful for heavy-duty jobs.
This machine is fundamental for demanding jobs, even on hard terrain which has never been cleared, but also for those seeking quality and robustness.
Another feature to consider while choosing a garden tiller is the weight. The models in this category have a considerable weight that facilitate soil penetration, especially when it is hard and not cleared. Thanks to this feature, heavy series petrol garden tillers with gear transmission are suitable to work on large areas.