ParkTool Bottom Bracket Tool BBT-18 | For Shimano Octalink/ISIS

Park Tool | BBT-18 | Bottom bracket tool for Octalink / ISIS / Bosch

The Park Tool BBT-18 is a sturdy and precise tool for installing and removing bottom brackets with 8-notch interfaces. It fits Shimano Octalink (e.g. Shimano BB-7700), ISIS Drive, and selected lockrings on Bosch and Brose e-bikes, among others. An ideal tool for both home workshops and professional use.

Specifications:

• Fits bottom brackets with 8-notch interfaces

• Outside diameter: approx. 43.4 mm

• Inside measurement from notch to notch: approx. 38 mm

• Notch width: approx. 3.9 mm

• Hole diameter: approx. 22.5 mm (not suitable for a 30 mm axle)

• Used with a 36 mm open-end wrench, socket wrench, or torque wrench

• Compatible with:
  – Shimano Octalink (right side)
  – ISIS Drive (e.g. Truvativ, Bontrager, and others)
  – Chainring lockrings on Bosch Gen 3 and 4 and Brose Specialized Levo

Material:
Hardened steel with a precisely machined fit for long durability and safe use

Weight:
Approx. 140 grams

Note:
Not compatible with bottom brackets with 16-notch interfaces (e.g. Hollowtech II – use Park Tool BBT-19.2 in that case).