Bottom bracket box cutter

Bottom bracket facing tool for bikes: the precision tool you need

In the world of bicycle mechanics, a quality build often depends on crucial finishing touches. One such operation is facing the bottom bracket shell to ensure perfect alignment and optimal contact with the bearing cups. For this, one tool stands out for its reliability and precision: the Cyclus Tools bottom bracket facing tool.

What is a bottom bracket facing tool ?

When installing a bottom bracket, the quality of the shell’s surface is essential. If the faces are uneven or poorly machined, this can lead to creaking, play in the crankset, or premature bearing wear. A bottom bracket facing tool is used to machine the outer edges of the shell so they are perfectly flat and parallel. It also removes paint or corrosion that could interfere with proper assembly.

The Cyclus Tools facing tool: german precision

Cyclus Tools is a well-known German brand among professional bike mechanics, recognized for its durable and accurate workshop tools. Their bottom bracket facing tool offers several standout features:

• Hardened high-quality steel for long-term durability, even under heavy use

• Sharp, precisely machined cutting edges for clean, effortless, burr-free cuts

• Compatible with common bottom bracket standards, including BSA (1.37 x 24), Italian (36 x 24), and Press-Fit systems

• Designed to work with a dedicated guide and support system, ensuring perfect alignment during the facing process

This tool is part of the modular Cyclus Tools system, with interchangeable adapters and ergonomic handles.

Why use a facing tool on a bottom bracket shell ?

A bottom bracket facing tool is essential in many workshop scenarios:

• Installing a new threaded bottom bracket on a freshly painted frame

• Preparing a raw or restored frame for assembly

• Replacing bearing cups on an old or misaligned frame

• Correcting manufacturing defects in frame alignment

By creating smooth, parallel surfaces, the mechanic ensures perfect crankset alignment, reducing stress on the bearings and improving pedaling efficiency.

A must-have for the professional bike workshop

The Cyclus Tools bottom bracket facing tool is one of those essential workshop tools trusted by professionals who value precision. While it does require proper technique, it’s a worthwhile investment for ensuring clean, long-lasting assemblies.

In summary:

• Purpose: Machines bottom bracket shell faces for accurate installation

• Brand: Cyclus Tools

• Advantages: Precision, durability, wide compatibility

• Best for: Restoration, new builds, professional maintenance

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