Five In One Bottom Bracket Wrench For 39mm 40.5mm And 44mm External Bearing Cups With 16 Notches, Cr V Steel Ni Cr Plating, Phi 21 10T And 24mm Box End, Bicycle BB Bearing Install And Removal Tool

All-in-one BB wrench for 39/40.5/44mm external cups
✔️ 3 sizes 39/40.5/44mm OD cups w/ 21-10T and 24mm sockets

This multifunction bottom bracket wrench is designed for installing and removing external bearing cups on bicycles with 39mm, 40.5mm, and 44mm OD cups across Shimano and SRAM models. It's a handy tool for bike shops and DIY maintenance. Package Includes: 1 x Multifunction bottom bracket Wrench.

✅ 3-size BB wrench fits 39/40.5/44mm OD cups
✅ Includes φ21-10T and 24mm sockets for pedals and BBs
✅ Chrome Vanadium steel with nickel-chromium plating for durability
✅ Hardened to HRC 50-55; laser cut and double heat treated
✅ Dimensions: 288 mm × 60 mm × 4.1 mm (11.34" × 2.36" × 0.16")
✅ Color: Silver

💡 What is a bottom bracket wrench with 39/40.5/44mm sizes used for and why is it handy?

This handy tool helps service external bearing cups across a wide range of bikes.

- Fits 39/40.5/44mm OD cups used by Shimano, SRAM, and others

- Includes φ21-10T and 24mm sockets for pedal and BB work

- Made from Cr-V steel with nickel-chromium plating for durability