Park Tool BBT-169 Steel Bottom Bracket / Lockring Tool

The Park Tool BBT-169 Steel Bottom Bracket / Lockring Tool is a heavy-duty 4140 steel workshop tool for removal and installation of components with 16-notch tool fittings covering threaded bottom bracket cups center lock disc brake rotor lockrings and e-bike motor lockrings. The BBT-169 fits 16-notch fittings with a major diameter of 44–45mm and a minor diameter of 42.7mm encompassing Shimano BB80 BB5700 XT BB70 BB51 and previous external bearing threaded cups as well as cups from Campagnolo Chris King FSA MegaExo Hope SRAM/Truvativ GXP Race Face X-type Surly and others. Center lock disc brake rotor lockrings and Bafang BBSH and BBS02 mid-drive motor lockrings are also within its scope making the BBT-169 one of the broadest-application tools in the Park Tool bottom bracket range. The extra-deep body handles extra-wide spindles low-profile walls seat into recessed lockrings and three drive options — 3/8" drive 1" hex and 36mm wrench flats — address seized components across the full compatibility list. Integrated threads accept the Park Tool BBT-RS Bottom Bracket Tool Retaining System or GPS-1 Guide Pins (each sold separately).

Machined from 4140 steel for heavy-duty workshop use

Fits 16-notch tool fittings with a major diameter of 44–45mm and a minor diameter of 42.7mm

Compatible with Shimano BB80 BB5700 XT BB70 BB51 and previous external bearing threaded cups

Also fits cups from Campagnolo Chris King FSA MegaExo Hope SRAM/Truvativ GXP Race Face X-type Surly and others

Seats center lock disc brake rotor lockrings

Fits Bafang BBSH and BBS02 mid-drive motor lockrings

Extra-deep body accommodates extra-wide spindles

Low-profile walls at the point of engagement reach recessed lockrings

Three drive options: 3/8" drive fitting 1" hex fitting and 36mm wrench flats

Outer diameter at point of engagement: 50.04mm (1.97")

Internal clearance: 42mm (1.654") depth x 30.44mm (1.198") diameter

Integrated threads accept Park Tool BBT-RS or GPS-1 Guide Pins for added stability (each sold separately)

Not rated for use with impact drivers

Model	Steel Bottom Bracket And Lockring Tool
BBT	169
Description	Bottom Bracket And Lockring Tool
Color	Black