Where to find quadcrashers in fortnite - Crackshot Quadcrashers are often found at gas stations and auto repair shops (for example, the one east of The Daily Bugle). You can usually find at least one in these locations, often two, which is useful if you're playing duos and don't want to leave your friend behind.
There are also two at Crackshot's Cabin (also known as the Nutcracker House), which sits on the south shore of a small lake across from the Logjam Lumberyard.
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All Crackshot Quadcrasher locations are marked on the map below. You might think that the fact that it has a snowplow on the front would mean you'd only find it in snowy environments, but that's not the case. Crackshot Quadcrashers are spread out fairly evenly across the map.
To travel 1,000 meters in a Crackshot Quadcrasher, you just have to get on and start moving. Using momentum will make you move much faster and thus reach the target distance quicker.
Remember that the Crackshot Quadcrasher is a noisy vehicle, especially when propelled, so it will likely give away your position to other players. Fortunately, if you move fast, you will be a difficult target to hit.