Park Tool BBT-118 Lockring Tool for ISIS / Bosch® Gen 3, Gen 4 and Gen 5 E-Bike Systems

The Park Tool BBT-118 lockring tool is designed for the removal and installation of components with an 8-notch tool fitting. This includes lockrings for e-bike systems with larger chainrings (e.g. Bosch Gen 3, Gen 4 and Gen 5) as well as bottom brackets with ISIS standard.
 
This tool is – in usual Park Tool quality – manufactured from precision-machined 4140 steel and features an extra-deep body to accommodate wide spindles and low-profile walls at the point of engagement for recessed lockrings.
 
The BBT-118 has three tool fittings: A 3/8" drive fitting, a 25 mm hex fitting and 36 mm wrench flats, so that you can even loosen particularly seized components. In addition, the tool has integrated threads for use with the Park Tool BBT-RS bottom bracket tool retaining system or GPS-1 guide pins.
 
Details:
• High-performance tool for the removal and installation of components with 8 notches
• Made from precision-machined 4140 steel for excellent durability
 
Compatibility:
• SHIMANO Octalink® drive-side bottom bracket cups with external notches
• ISIS Drive bottom bracket cups, including Truvativ® and Bontrager®
• Lockring for Bosch® Gen 3, Gen 4 and Gen 5 e-bike systems
• Lockring for Specialized® Levo Brose e-bike systems
 
Technical details:
• Material: 4140 steel
• Tool fitting (inside): 3/8" 
• Tool fitting (outside): 1" / 25 mm and 36 mm (only for flat wrenches)
• Main inner Ø: for 42.7 mm
• Small inner Ø: 37.6 mm
• Notches: 8
• Weight: approx. 230 g
 
In the box:
• 1 Park Tool BBT-118 lockring tool for ISIS / Bosch® Gen 3, Gen 4 and Gen 5 e-bike systems
 
Note:
NOT suitable for use with impact wrenches.

Manufacturer: Park Tool, 5115 Hadley Ave N St. Paul, MN 55128, USA, www.parktool.com/en-int/
Responsible person: Grofa Action Sports GmbH, Otto-Hahn-Str. 17, 65520 Bad Camberg, Germany, www.grofa.com/de/contact-de/