Best Mountain Bike Frames of 2025

The Gravity FSX Mountain Frame is designed for avid cyclists looking for a reliable and high-performing bike. With its disc brake mounts, you can enjoy superior stopping power in various weather conditions, enhancing your safety on rugged trails. The replaceable rear derailleur hanger ensures that you can easily make repairs and maintain your bike, keeping it in top shape. An adjustable rear shock is included, allowing you to customize your ride for comfort and performance on different terrains. Plus, the frame features 135mm rear spacing, providing stability and compatibility with a variety of wheelsets.

The Gravity Mountain Bike Frame Set is a high-quality frame and fork designed for use with 26-inch wheels. With its sleek gloss black color, this frame set is sure to turn heads on the trails. It is specifically designed for use with disc brakes, providing excellent stopping power and control. The included SunTour XCT V3 long travel fork features preload and advanced lockout, allowing you to easily adjust the suspension to suit your riding style. With a standard 1 1/8 headset and compatible with a 27.2mm seat post and 31.8mm seat clamp, this frame set offers a comfortable and customizable fit. The 135mm rear spacing and 100mm front spacing ensure compatibility with most mountain bike components. Overall, the Gravity Mountain Bike Frame Set offers durability, performance, and versatility for riders looking to build their own mountain bike.

The Gravity FSX Mountain Bike is designed for an enhanced riding experience. It features disc brake mounts, providing reliable stopping power when you need it most, especially on steep descents. The bike also has a replaceable derailleur hanger, ensuring you can easily fix gear shifting issues without replacing the entire assembly. Additionally, the adjustable rear shock allows you to customize your ride for different terrains, improving comfort and control. With 135mm rear spacing, the bike offers stability and responsiveness, making it perfect for off-road adventures.

The ICAN P1 27.5er 650B Plus Carbon Fiber Full Suspension MTB Frame is a full carbon fiber mountain bike frame with a 200x51mm shock size, 148x12mm thru axle rear spacing, and the ability to use 27.5 x2.8'' or 29x2.35'' tires. It's lightweight and designed for fast arrival from USA Warehouse Stock by UPS. Customers have praised its high quality and excellent customer service.

The HIMALO Mountain Bike Frame is designed for versatility with its full suspension system, accommodating both 27.5 and 29-inch wheels. Its robust rear fork enhances strength and toughness, ensuring better shock absorption for a smoother ride over rough terrains. The frame features a four-link structure that adapts easily to various road conditions, making it suitable for mountain biking, enduro, and more. Additionally, the internal routing design keeps cables protected and tidy, enhancing the bike's overall aesthetics while providing convenience during rides.

The IMUST Carbon Full-Suspension Mountain Bike Frame, also known as the IMUST Carbon Frame, is a high-quality frame designed for trail and enduro riding. Made from Toray T700 carbon fiber, this frame is lightweight yet durable. It is designed for use with 120 or 150 mm forks and can accommodate either a 200 X 51 or 200 X 57 mm shock, allowing you to customize the suspension to your preference. With a Boost 148 mm rear axle spacing, this frame can accommodate up to 3.0” rear tires for optimal traction on the trails. Weighing in at just 2.45 kg/5.4 lbs, this frame is perfect for riders who value speed and agility. Plus, with a 2-year manufacturer's frame warranty, you can ride with peace of mind. Upgrade your mountain bike with the IMUST Carbon Frame and experience enhanced performance on every ride.

The BSFHQS Mountain Bike Frame is designed for riders who value performance and durability. Its aluminum alloy construction offers a lightweight yet strong frame, making it ideal for challenging terrains. With a thru axle design, this frame provides stability and improved handling. The full internal routing keeps your shifting and brake wires protected from wear, ensuring smooth operation. Additionally, it accommodates tires up to 2.35 inches, giving you the versatility to tackle various trails with confidence.

The HIMALO Mountain Bike Frame is designed for versatility and performance. This full suspension frame provides a smooth ride, making it ideal for downhill, cross-country, and all-mountain biking. Constructed from high-strength aluminum alloy, it enhances durability while keeping the frame lightweight. The fish scale welding process adds to the frame's overall stiffness, ensuring stability during rides. With compatibility for 27.5-inch wheels and tires up to 2.4 inches, you can tackle various terrains with ease. Additionally, the quick-release feature allows for easy adjustments and maintenance, giving you more time to enjoy your ride.

The TUJISEK Mountain Bike Frame is designed for adventure enthusiasts who seek a reliable hardtail option. This frame supports both 27.5 and 29er wheels, making it versatile for various terrains. With sizes available in 15'', 17'', and 19'', you can choose the perfect fit for your riding style. It features internal routing for a clean look and improved aerodynamics. Additionally, the frame is constructed from durable aluminum alloy, ensuring it can withstand tough trails while providing a lightweight experience. Enjoy a smooth ride with the built-in disc brake compatibility, enhancing your stopping power when you need it most.

The BSFHQS Mountain Bike Frame is designed for versatility and performance. Its full suspension system is perfect for tackling a variety of terrains, giving you a smoother ride and better control. The lightweight aluminum alloy construction ensures durability without adding unnecessary weight, making it easier to handle. With full internal routing for your shifting and braking cables, you can enjoy a cleaner look while protecting the wires from wear. This frame is compatible with both 27.5-inch and 29-inch wheels, allowing you to choose the setup that best fits your riding style.