Shimano TL-FC25 bottom bracket adapter tool

The Shimano TL-FC25 adapter tool is an essential accessory for servicing new-generation Shimano bottom brackets. Designed as a footprint reducer, it enables a standard Hollowtech II spanner (type TL-FC32 or TL-FC36) to be used with smaller-diameter bottom brackets such as the SM-BBR60, BB-MT800 or BB-MT801.

Made from fibreglass-reinforced resin, this adapter combines lightness and strength, while ensuring perfect compatibility with Shimano tools.

Its role is simple: it fits into a conventional bottom bracket spanner to adapt the diameter and enable precise, safe assembly/disassembly of modern bottom brackets. Compact and easy to carry, it's ideal for mechanics and cyclists alike who want to maintain their bikes themselves.

Indispensable for recent road and MTB groupsets Shimano, the TL-FC25 is an economical solution for avoiding the purchase of an additional specific tool.

Technical specifications :

- Compatibility: SM-BBR60, BB-MT800, BB-MT801
- Reference Shimano: WP-Y13009260

FAQ - Shimano TL-FC25

What exactly is this tool used for?

It's an adaptor that allows you to use a standard Hollowtech II key with recent Shimano bodies with a smaller diameter.

Which cameras is it compatible with?

Mainly :

• SM-BBR60 (Ultegra / 105)
• BB-MT800 / MT801 (XT)

Do I need another key?

Yes, the TL-FC25 does not work on its own: it must be used with a TL-FC32 or TL-FC36 type key.

Is it a durable tool?

Yes, for normal use, but as it is made of resin, we recommend that you :

• align it properly
• avoid excessive torque

Is there an alternative?

Yes, some people prefer to use a spanner with the correct diameter (41 mm) for greater strength, without an adaptor.