16-NOTCH HOLLOWTECH II BOTTOM BRACKET TOOL PARK TOOL BBT-169

The Park Tool BBT-169 is the 16-notch bottom bracket tool for removing and installing the external cups of Shimano Hollowtech II threaded bottom brackets and many other brands. The same fitting also works on Center Lock disc rotor lockrings and on the lockrings of some e-bike mid-drive motors. The 16-notch fitting is one of the most common of all: external-bearing cups on road and MTB bikes have used it for years, so this is a tool you pick up at the workstand almost every day.

It is made from precision-machined 4140 steel and designed for heavy workshop use. The extra-deep body leaves room for wider spindles, while the low-profile walls at the point of engagement reach recessed lockrings. It can be turned three ways: a 3/8" drive fitting, a 1" hex and 36 mm wrench flats, a valuable option when a cup is seized after years of use. The body also has threads for the BBT-RS Retaining System or GPS-1 Guide Pins, sold separately, which stop the tool slipping off the notches.

Where to use the BBT-169 16-notch bottom bracket tool

• Shimano BB80, BB5700, XT BB70, BB51 and earlier external cups
• Threaded cups from Campagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels Mfg, Fulcrum and others
• Center Lock disc rotor lockrings
• Lockrings of Bafang BBS series mid-drive motors, such as the BBS02

Why choose Park Tool BBT-169

• Precision-machined 4140 steel for an accurate fit on the 16 notches
• Three ways to turn it: 3/8" drive, 1" hex and 36 mm wrench
• Deep body with 42 mm internal clearance for long spindles
• One tool for bottom brackets, Center Lock rotors and motor lockrings
• Ready for the BBT-RS system and GPS-1 Guide Pins

The tool is not rated for use with impact drivers. Versatile and tough, the Park Tool BBT-169 16-notch bottom bracket tool is one of the most used tools on any mechanic's bench.