Mongoose Flatrock

Price: $324.99
(as of Jul 21, 2026 19:04:34 UTC – Details)
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Explore rad new trails with the Flatrock mountain bike by Mongoose. The Flatrock comes equipped with a lightweight aluminum hardtail frame and Element suspension fork that are ready to tear down the trail. 21-speed twist shifters and rear derailleur provide effortless gear changes, while alloy v-brakes deliver reliable stopping power. Plus, double wall alloy rims offer lightweight durability. Get out there and explore with the Mongoose Flatrock.
HARDTAIL MOUNTAIN BIKE: Get ready to explore new trails on the Flatrock by Mongoose. Featuring 26-inch wheels, this bike is perfect for riders from 5’4″ – 6’2″ tall. Roll over difficult terrain with ease.
BORN IN DIRT: Lightweight yet durable with an aluminum mountain frame, this teens, womens and mens mountain bike is ready to explore off the bike path and keep up with adventurous riders.
BUILT FOR ADVENTURE: This Mongoose mountain bike is ready to roll with knobby mountain tires for durable traction. The suspension fork absorbs bumps and uneven terrain, ensuring a smooth, controlled ride.
SHIFT INTO GEAR: This 7-speed bike boasts twist shifters for smooth shifting and the right gear for your ride. Linear pull brakes provide reliable stopping power, giving riders control on rough terrain.
KNOW YOUR ROOTS: As one of the OGs in BMX and action sports, Mongoose has helped bring this movement to the world. For over 50 years, we’ve been all about epic rides and pushing limits – and we’re just getting started.