29-inch Mountain Bike Aluminium Frame for Disc Brakes with Internal Cable Routing

This 29-inch mountain bike frame is engineered as a foundational component for cyclists looking to build a custom off-road bike or replace an existing frame. Its core purpose is to provide a lightweight, structurally sound chassis that accommodates modern mountain bike standards. Crafted from aluminium alloy, it balances rigidity and weight, making it suitable for a range of trail and cross-country riding. Key features like the integrated disc brake mount and internal cable routing system highlight its contemporary design, aimed at enhancing both performance and the bike's finished appearance.

Features and Construction

The frame is defined by a set of precise specifications and construction choices tailored for mountain biking. Its design focuses on compatibility with large 29-inch wheels and modern component standards, offering a stable platform for assembly.

Material and Build

The primary material is aluminium alloy, a common choice for bicycle frames due to its favourable strength-to-weight characteristics. This construction helps keep the overall bike weight manageable, which can improve handling and acceleration on trails. The frame features internal cable routing, often referred to as 'innerline', which guides gear and brake cables through the frame tubing. This design protects the cables from external elements, can reduce friction for smoother shifting and braking, and contributes to a sleeker overall bike profile with fewer exposed wires.

Size and Practical Fit

The frame's geometry is detailed by specific measurements. It has a 590mm beam length and a 385mm rear fork length, dimensions that influence the bike's wheelbase and handling characteristics, typically favouring stability. The head tube size is 44-55 * 110mm, defining the space for the fork's steerer tube and headset bearings. A key fitting for the rider is the riser (or seatpost) size: it has a 30.8mm diameter and is offered in two length options, 410mm or 460mm, allowing for some adjustment to accommodate different rider leg lengths or preferred saddle heights.

Uses and Placement

This frame is the starting point for a functional mountain bike, intended for use on off-road trails, forest paths, and unpaved terrain. Its specifications guide the type of bike it will become and where it can be effectively ridden.

Event or Professional Use

For competitive or frequent trail riders, the 29-inch wheel platform combined with a disc brake-ready frame is a common standard. The large wheel size helps roll over obstacles more easily and can maintain momentum on rough ground, which is advantageous in cross-country racing or endurance trail riding. The inclusion of a brake bracket in the package ensures immediate compatibility with hydraulic or mechanical disc brake systems, which offer consistent, powerful stopping performance in varied weather conditions—a critical feature for serious riding.

Everyday Home Use

For the home mechanic or cycling enthusiast building a personal trail bike, this frame provides a clear project foundation. Its stated dimensions, like the 135mm open gear spacing, inform the purchase of compatible rear wheels and hubs. The availability in a Black Green colour and two riser sizes offers a degree of personalisation. Once assembled with suitable components, the resulting bike would be capable of handling weekend trail adventures, bikepacking trips, or spirited rides on local off-road tracks.

Benefits and Buying Value

The value of this frame lies in its role as a dedicated, specification-led component for creating a mountain bike tailored to modern standards, without the need for extensive modifications or compromises.

Reuse and Low Maintenance

While the frame itself requires no routine maintenance, its design promotes easier upkeep for the complete bike. The internal cable routing helps protect the critical gear and brake lines from dirt, mud, and accidental impacts, which can extend their service life and reduce the frequency of replacements or adjustments. The aluminium construction is also resistant to rust, a practical benefit for a bike expected to encounter wet conditions, though regular cleaning after muddy rides is still advisable to maintain bearing and moving part performance.

Why Choose This Product

Choosing this frame is a decision based on its concrete specifications aligning with a builder's needs. It is specifically for those requiring a 29-inch wheel, disc brake compatible chassis. The internal routing is a tangible upgrade over external routing for those seeking a cleaner build and potential performance benefits. By providing two riser size options (410mm and 460mm) in the same Black Green colour, it offers a straightforward choice for fit without sacrificing the visual style. It serves as a focused solution for constructing a capable, contemporary mountain bike from the ground up.