Description
Description
The BBT-118 is made from precision-machined 4140 steel and is a high-performance tool for removing and installing selected bike components with an 8-spline drive. The BBT-118 is designed to be compatible with any bottom bracket that has the corresponding tool interface. It features an extra-deep body for extra-wide spindles and flat walls at the engagement point for recessed retaining rings. The BBT-118 has three methods for engaging the tool — a 3/8" drive, a 1" hex, and 36 mm key flats — so you can loosen even the most tightly fitted components. For additional stability, the BBT-118 has integrated threads for use with the Park Tool BBT-RS bottom bracket tool holder system or GPS-1 locating pins (each sold separately).
Features:
- For installing and removing the following components with an 8-spline tool interface
- Shimano® Octalink® bottom bracket shell on the drive side with external splines
- ISIS Drive bottom bracket shells, including Truvativ® and Bontrager®
- Front chainring lockring for Bosch® Gen 3, Gen 4 and Gen 5 E-Bike systems
- Front chainring lockring for Specialized® Levo Brose E-Bike systems
Tool specifications:
- 3/8" drive
- 1" and 36 mm key flats
- 8 notches with a nominal diameter of 37.6 mm inside and 42.7 mm outside
- Internal spacing: 31.14 mm (1.226") depth (from the tool face) x 22.48 mm (0.885") diameter
- Not suitable for use with impact drivers
Compatible with:
- Compatible with any bottom bracket with the corresponding tool interface
What’s included:
- 1x BBT-118 steel bottom bracket/lockring tool – 8-notch


