Spring-based tension system: Ensures consistent, adjustable pressure for full tool engagement and prevents slippage
Compatible with most bottom bracket standards: Supports threaded, thread-together, cartridge, and cone cup designs
M8 threaded rod and double-sided adapter nut: Allows direct threading into compatible cartridge bottom brackets
M15 adapter for aluminum tools: Enables installation of Park Tool's nine aluminum bottom bracket tools with integrated threading
Works with multiple Park Tool bottom bracket tools: Compatible with BBT-27, BBT-35, BBT-47, BBT-59, BBT-69, BBT-79, and BBT-9
Summarized by Shop
Bottom brackets have some of the highest torque specs of any component found on a bicycle. Despite this, some bottom bracket cups feature tool fittings that allow mere millimeters of engagement, which can be a problem when attempting removal or installation. Solution: the Park Tool Bottom Bracket Tool Retaining System. Used in conjunction
Rod Length
175 mm (6.9 in)
Rod Threading
M8 x 1.0
Adapter Nut Threading
M12 x 1.0, M15 x 1.0
Speed Nut Diameter
38 mm (1.5 in)
Washer Diameter
57 mm (2.25 in)
Color
Black, Silver
Summarized by Shop
5.0
1 rating
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1
A good quality tool, as expected
The correct tool required for the job
A must have for T47 internal Bottom bracket