MSC Cyclus BSA Bottombracket Thread Complete Set tool

Maintenance - Transmission tools.

MSC Cyclus BSA Bottombracket Thread Complete Set Tool.

Cyclus bsa bottombracket thread complete tool set.

Achieve workshop-level precision and a flawless foundation for your drivetrain with the MSC Cyclus BSA Bottombracket Thread Complete Set Tool. This professional-grade tool is the definitive solution for preparing, cleaning, and restoring the threads of any frame equipped with a standard BSA threaded bottom bracket shell. It is an essential investment for professional bike mechanics, frame builders, and dedicated home enthusiasts who demand perfection in every build and repair.

A perfectly prepared bottom bracket shell is critical for the smooth installation, optimal performance, and longevity of your bottom bracket and crankset. Issues like paint overspray from manufacturing, corrosion, or slightly damaged threads can lead to difficult installation, misalignment, persistent creaking, and premature bearing wear. This complete set from Cyclus, presented by MSC, directly addresses these problems by allowing you to precisely cut or chase the threads, ensuring they are clean, perfectly aligned, and ready for a seamless bottom bracket installation.

Key Benefits:

* Perfect Bottom Bracket Alignment: The tool´s precision guides ensure that both the left and right-hand threads are cut perfectly parallel to each other and concentric to the shell. This critical alignment prevents binding and uneven stress on the bearings, significantly extending their lifespan.
* Eliminate Creaks and Noise: By creating a perfect interface between the frame and the bottom bracket cups, this tool helps to eliminate one of the most common sources of drivetrain noise, ensuring a silent and efficient ride.
* Effortless Installation: Clean and perfectly formed threads allow bottom bracket cups to be threaded in smoothly by hand, preventing cross-threading and damage to both the frame and the new components.
* Professional Frame Preparation: Whether you are building a new bike from a bare frame or restoring a classic, this tool provides the professional finish required for a high-performance assembly. It removes any factory imperfections or paint, guaranteeing a clean and precise fit.
* Versatile Application: Expertly designed for both chasing existing threads to clean them up and for cutting new threads into an unprepared frame shell, making it a versatile and indispensable workshop tool.

Main Features:

This comprehensive set provides everything needed for complete BSA bottom bracket shell preparation. The system is engineered for control, accuracy, and durability, ensuring reliable results every time. It includes professional-grade thread cutters for both the left-hand and right-hand threads, designed to remove material cleanly and efficiently. The set is complemented by precision guides that lock the tool into the shell, guaranteeing a straight and accurate cut. The long, ergonomic handles provide ample leverage, allowing for a smooth and controlled cutting action with minimal effort.

Technical Specifications:

* Tool Type: Bottom Bracket Threading & Chasing Tool Set
* Bottom Bracket Standard: BSA
* Thread Specification: 1.370" x 24 TPI (Threads Per Inch)
* Direction: Includes specific cutters for both Right-Hand (drive-side) and Left-Hand (non-drive-side) threads.
* Application: Frame preparation, thread cleaning (chasing), and thread cutting.
* Compatibility: Suitable for all bicycle frames using a standard BSA threaded bottom bracket shell