The Ultimate 300 Two-Stroke Off-Road Bike Build | Dirt Bike Test

Trevor Hunter breaks down our 2025 GasGas EX300 Bike Build, discussing all of the mods to the Power, Suspension, Chassis-Handling, and more. The '25 GasGas EX300 reveals an all-around off-road star, praised primarily for its incredibly versatile Throttle Body Injected (TBi) two-stroke engine that balances aggressive power with easy luggability. Paired with a more comfortable, refined chassis for 2025 and quality WP closed-cartridge suspension, the bike is a true "do-it-all" machine, suitable for everything from desert racing to tight trails. The Two Stroke Performance TBi Power Kit is a game-changing modification for this build, transforming the motor into a powerful, yet more rideable engine package. Pro Circuit's Exhaust, TCS Suspension, and several other mods make this one of the best all-around bikes we've tested to date. Read the full Bike Test here: https://dirtbiketest.com/bike-tests/2... Looking to Learn How to Ride Off-Road? Click the Link Below To Learn How! https://jimmylewisoffroad.com/learn-t... Support DBT: Shop Rocky Mountain ATV/MC - https://www.rockymountainatvmc.com/?u... Shop Amazon - https://www.amazon.com/ref=sm_n_se_dk... Follow us for more bike bike and motorcycle related product testing! Instagram:   / dirtbiketest   Facebook:   / dirtbiketest