29-inch aluminium mountain bike frame with disc brake mount and inner cable routing

This aluminium alloy mountain bike frame is engineered for 29-inch wheels, offering riders a foundation for a capable off-road bicycle. The larger wheel size is favoured for its ability to roll over obstacles more easily than smaller alternatives. Key design features include preparation for disc brake systems, which provide reliable stopping power in mud and wet conditions, and integrated inner cable routing that guides gear and brake lines through the frame for protection and a streamlined appearance. Available in a black green finish, it suits riders looking to build a custom hardtail or full-suspension mountain bike with modern standards.

Features and Construction

This frame is defined by its material choice and specific design specifications aimed at trail performance and ease of build.

Material and Build

The frame is constructed from aluminium alloy, a material commonly selected for bicycle frames due to its combination of relatively low weight and good structural strength. This makes for a responsive ride quality and contributes to overall bike weight savings. The construction includes a 34 * 68mm threaded bottom bracket shell (five-way), which is a standard size compatible with a wide range of crank sets. The rear of the frame uses a 135mm wide opening (open gear) to accept standard quick-release or thru-axle mountain bike rear hubs.

Size and Practical Fit

The frame is designated as a 29-inch size, referring to the wheel diameter it is designed to accommodate. Key frame measurements that influence rider fit and handling include a 590mm top tube length and a 385mm rear fork length. The head tube, measuring 44-55 * 110mm, is designed to work with modern fork steerer tubes and headsets. A notable feature for customisation is the offering of two different seat post lengths within the same colour option: 410mm and 460mm. This provides a choice to better match the frame to a rider's leg length and intended saddle height.

Uses and Placement

This frame serves as the central component for constructing a mountain bike tailored for specific riding disciplines or personal preference.

Event or Professional Use

For competitive cross-country or trail riding, the 29-inch wheel platform supported by this frame is a popular choice. The aluminium construction offers a balance of stiffness for efficient power transfer and weight savings, which can be advantageous over long distances or in races where climbing is involved. The provision for disc brakes and internal routing meets the demands of modern race bikes where reliable braking and a clean, aerodynamic profile are valued. Builders can select high-performance components to create a bike suited for competition.

Everyday Home Use

For the enthusiast building a bike for weekend trail rides, fitness, or general off-road exploration, this frame provides a versatile and durable starting point. The 29-inch wheels can make rougher fire roads and local trails feel smoother. The inclusion of a brake bracket in the package indicates readiness for a disc brake system, which is beneficial for all-weather riding confidence. The choice between two seat post lengths allows a more precise setup for comfort on longer recreational rides without requiring aftermarket seat post modification.

Benefits and Buying Value

The value of this frame lies in its specification-focused design, which offers clear parameters for a custom build while omitting more expensive proprietary systems.

Reuse and Low Maintenance

Aluminium as a material does not rust, which helps maintain the frame's appearance and structural integrity over time with basic care. The use of standard, widely adopted measurements—such as the 135mm rear spacing, 34 * 68mm bottom bracket, and 44-55 * 110mm head tube—ensures broad compatibility with a vast range of new and existing bicycle components. This makes it a practical choice for a first build, an upgrade project, or for riders who prefer to maintain and swap parts themselves using commonly available tools and knowledge.

Why Choose This Product

This frame is a suitable choice for riders or builders seeking a 29-inch aluminium mountain bike frame with clearly stated, standard geometry and mounting specifications. Its value is in providing a defined canvas: you know the exact wheel size it takes, the rear hub spacing, the bottom bracket type, and that it has internal routing and disc brake mounts. The option of two seat post lengths in the same colour is a practical touch that can simplify the fit process. It is a component for those who prioritise these concrete specifications and the build flexibility they enable over a complete, pre-assembled bicycle.