Dirt Bikes, officially known as Trail Thrashers, were introduced to Fortnite at the start of Chapter 4 Season 1. In many ways, they revolutionized rotating in-game as they could be used to overcome rough terrain and uneven landscapes. Their "jump" feature even allows you to quite literally jump over obstacles while driving at full throttle. Essentially, this could be used to move about with ease in most situations.In Chapter 4 Season 4, Dirt Bikes aka Trail Thrashers, can still be found on the island, and while there are more vehicles to choose from, they remain popular as ever. That being said, finding one still takes a bit of effort. Given how vast the island is, it may not be easy to stumble upon one. Thankfully, there are few fixed places where you can find them parked, fueled, and ready to use.All Dirt Bike (Trail Thrasher) locations in Fortnite Chapter 4 Season 4Despite Dirt Bikes being popular, for some odd reason, Epic Games has made sure that only a few of them spawn in and around Named Locations. This has likely been done to reduce the clutter of vehicles in these areas, but it does make it harder to find in general. Nevertheless, here are the Named Locations at which you can find Dirt Bikes (Trail Thrashers):Dirt Bikes/Trail Thrashers location in all Named Locations in Fortnite Chapter 4 Season 4 (Image via Fortnite.GG)Shattered SlabsFrenzy FieldsBrutal BastionKnotty NetsKenjutsu CrossingCreeky CompoundBreakaway BayIn addition to finding Dirt Bikes (Trail Thrashers) in Named Locations, you can also find them at Landmarks spread out across the island. Some of these locations are well-known, while others are rather obscure in nature:Dirt Bikes/Trail Thrashers location in all Landmarks in Fortnite Chapter 4 Season 4 (Image via Fortnite.GG)The GetawayTrickchaser's JumpMarine MonolithsFireglow SanctuaryMesa's ReachBeached PitSeaside SentryRoyal RuinKing's LandingSunswoon LagoonSecluded SpireCrusty CratesCrackshot's CabinKapok CoveFeudal FuelIcy IsletsBeep 'N BounceCrude HarborAegis TempleIn general, it is easier to find Dirt Bikes (Trail Thrashers) at Landmarks than at Named Locations. Keep this in mind while looking for vehicles in-game. On that note, Dirt Bikes (Trail Thrashers) are not the only bikes in-game.Which is better?: Rogue Bike or Dirt Bike?At the start of Fortnite Chapter 4 Season 2, Victory Crown Rogue, also known as the Rogue Bike was introduced to the island. Unlike Dirt Bikes (Trail Thrashers), these have a boost feature which allows you to go into overdrive and gain speed for a short amount of time. However, they have a major drawback.While they perform well on paved roads, they are all but useless on any other terrain type. They receive a speed penalty and feel very cumbersome. For this reason, Dirt Bikes (Trail Thrashers) are by far superior in almost every aspect. The lack of a boost feature is well compensated by other factors such as a better grip, jump-mechanics, and the ability to maintain speed across all terrain types.