BBT-RS Bottom Bracket Tool Retaining System

Better safe than sorry! When mounting or loosening bottom brackets, the BBT-RS bottom bracket tool holding system from Park Tool ensures a firm fit of your tool on the bottom bracket cups, so it doesn’t slip. Because although bottom brackets are subjected to high torques during assembly and disassembly, some bottom bracket shells leave little room for the force-fit approach of the appropriate tool. Slipping can be dangerous and damage the bearing screw connection.

Most bottom bracket standards with and without thread are compatible with the Park Tool holding system. The BBT-RS securing tool can also be used with almost all Park Tool bottom bracket tools, to ensure safe working, and can also be configured for other tool versions. A spring-based clamping system on a threaded spindle exerts uniform, adjustable pressure on the mounted tool to ensure an ideal fit of the bottom bracket cup with the tool connection. The forces are transferred in the best possible way, avoiding damage.

Details:
Spring-based tensioning system for adjustable pressure
Ensures complete engagement of the bottom bracket tool
Designed for optimum power transmission to the bottom bracket
Prevents the tool from slipping off the bottom bracket
Made for bottom bracket cups, bolted inner bearings (industrial bearings, conical bearings, cartridge bearings), external bearings
Threaded rod for direct screwing into the bottom bracket shaft
With double-sided adapter nut for compatible cartridge bottom brackets
M15 adapter for aluminium bottom bracket tools from Park Tool with integrated thread

Technical details:
Length of threaded rod: approx. 175 mm  
Bar thread: M8 x 1.0
Thread of the adapter nut: M12 x 1.0 and M15 x 1.0
Washer: Ø 57 mm
Material: steel
Weight: approx. 270 g

In the box:
1 Park Tool BBT-RS Bottom Bracket Tool Holding System

Compatibility Park Tool bottom bracket tools:
BBT-27.3
BBT-35-12
BBT-35-36
BBT-47-12
BBT-47-16
BBT-49.3
BBT-59.3
BBT-69.3
BBT-79.3
Bottom bracket tools with multi-tooth spanner and handle (e.g. Park Tool BBT-9, BBT-29, HCW-4)
Bottom bracket tools with external wrench flats (e.g. Park Tool BBT-19.2, BBT-22)