8 Notch Bottom Bracket Lockring Tool 43mm Outer Diameter For Bikes With Shimano Octalink ISIS Drive Bosch Gen 3 And 4 And Brose Motors Easy Lockring Removal And Install Heavy Duty Tool For Pros And DIY Riders

8-Notch BB Lockring Tool, 43mm OD for Shimano/ISIS/Bosch
✔️ 8-notch lockring tool, 43mm OD, fits Shimano Octalink/ISIS/Bosch, single tool

This rugged tool is designed to remove and install lockrings on bottom brackets with 8 external notches, and is commonly used by pros and DIY riders on bikes with Shimano Octalink, ISIS Drive, Bosch Gen 3/4 and Brose motors.

✅ 8 external notches; tooth width ~3.9 mm; notch spacing ~13.5 mm
✅ Outer diameter 43.5 mm; inner width ~38 mm
✅ Center bore 22.5 mm (0.9 in); not for 30 mm shafts
✅ Material: high carbon steel; weight 93 g; color: black (New Model)

💡 What is an 8-notch bottom bracket lockring tool used for in bike maintenance? A handy tool for shop and DIY use to service 8-notch lockrings.

A quick, handy explanation with bullet details:
- lockring removal on 8-notch BB cups for Shimano Octalink, ISIS Drive, Bosch Gen 3/4, Brose
- compatibility with external 8-notch lockrings across popular systems
- durable high-carbon steel construction for repeated use