29-inch aluminium alloy mountain bike frame with innerline routing and disc brake compatibility

This 29-inch mountain bike frame offers riders a solid foundation for building a capable off-road bicycle. Constructed from aluminium alloy, it combines a lightweight feel with the rigidity needed for confident trail handling. The frame is designed around modern standards, featuring internal cable routing for a tidy appearance and dedicated mounts for disc brakes. Available in a black green finish and with a choice of two specific riser lengths, it provides a core component for cyclists to create a personalised mountain bike suited to varied terrain.

Features and Construction

This frame is built with specific dimensions and features that define its fit and performance characteristics on the trail. The measurements provided create a predictable geometry for stable riding.

Material and Build

The frame is fabricated from aluminium alloy, a material commonly chosen for bicycle frames due to its favourable strength-to-weight ratio. This construction method helps create a responsive and lively ride feel while maintaining durability. The internal cable routing system, described as 'innerline', guides gear and brake cables through the frame's interior. This design protects the cables from external damage and contributes to a cleaner overall aesthetic with less clutter around the head tube and down tube.

Size and Practical Fit

The primary size designation is 29 inches, referring to the wheel diameter this frame is designed to accommodate. Key frame measurements include a 590mm beam length and a 385mm rear fork length, which influence the bike's wheelbase and handling stability. The head tube measures 44-55 * 110mm, accommodating a corresponding headset. Riders can choose between two seat post (riser) options: 410mm or 460mm in length, both with a 30.8mm diameter, allowing for some adjustment in saddle height. The Five-Way junction measures 34 * 68mm.

Uses and Placement

As a core bicycle component, this frame defines the type of bike that can be built and the riding it is best suited for.

Event or Professional Use

Built to 29-inch wheel standards and from aluminium alloy, this frame forms the basis for a cross-country or trail mountain bike. The 135mm open gear spacing at the rear is a standard dimension for mountain bike hubs, ensuring wide component compatibility. The inclusion of disc brake mounts means the finished bike can be equipped with powerful hydraulic or mechanical disc brakes, which are preferred for consistent stopping power in wet or muddy conditions commonly encountered in mountain biking.

Everyday Home Use

For the home mechanic or cycling enthusiast, this frame presents a project for building a custom mountain bike. The clear specifications allow for accurate sourcing of compatible components like forks, wheelsets, headsets, and drivetrain parts. The aluminium construction is generally resistant to corrosion and requires minimal specific maintenance for the frame itself, making it a practical long-term investment for regular riding.

Benefits and Buying Value

Choosing a separate frame allows for a highly customised bicycle build, tailored to specific component preferences and riding style.

Reuse and Low Maintenance

The aluminium frame material is durable and, with proper care, can last for many years of use. Should other components wear out or become outdated, the frame itself can often be retained and rebuilt with new parts. The internal routing helps protect cables, potentially extending their service life and reducing the frequency of replacements. The frame's design does not include overly complex proprietary parts that might become obsolete.

Why Choose This Product

This frame provides a defined starting point with key modern features—29-inch wheels, disc brake mounts, and internal routing—without the cost of a complete bicycle. It allows riders to invest in higher-quality components from the outset or to upgrade an existing bike project. The availability of two riser sizes offers a degree of fit customisation. For those seeking a specific geometry or wanting to avoid the proprietary designs of some complete bikes, a frame like this offers clear specifications and standard interfaces.