Bottom bracket removal tool Shimano with TL-UN74-S cartridges - Y13009073

Shimano ’s TL-UN74-S tool (item no. Y13009073) is an essential professional spanner for removing and fitting cartridge bottom brackets Shimano. Designed for square-axle and Octalink systems, it ensures precise, safe work without damaging the frame or the bottom bracket shell.

Made from high-strength hardened steel, this tool offers excellent durability even with intensive use in a bike workshop or for regular maintenance at home. Compact, reliable and perfectly matched to the Shimano sockets, it is an essential tool for mechanics and keen cyclists alike.

Key features of the Shimano TL-UN74-S:

• Compatible with Shimano square-axle and Octalink cartridge bottom brackets
• 20-tooth profile for precise grip without slipping
• Made from ultra-strong hardened steel
• Easy to use with a 32 mm open-ended spanner
• Ideal for safe fitting and removal
• Official Shimano tool: ref. Y13009073

Main compatibilities:

The TL-UN74-S tool is compatible with many Shimano bottom brackets, including:

• BB-UN series
• BB-ES series
• Older Dura-Ace / Ultegra models (e.g. 7700, 7703)
• Earlier generations of Deore / XT
• BB-M952 and variants

It is particularly suitable for cartridge bottom brackets Shimano ) with a standard 20-spline profile.

Use and operation

The Shimano TL-UN74-S is used in conjunction with a 32 mm spanner or an adjustable spanner.

It allows:

• Removing seized or old bottom bracket cups
• Precise fitting without damaging the frame’s threads
• Effective transmission of tightening torque
• Clean work on road bikes, mountain bikes and touring bikes

Its compact design allows you to work even in hard-to-reach areas around the bottom bracket.