Park Tool bbt-59.3 crank At a 3rd of the

At a 3rd of the weight of most rubber Lite tubes

40" @ 520g / 18

2-sides threading

Injection molded composite with molded pins

we have taken that concept over the edge having the chainstays meet the BB shell at the widest point possible

Park Tool bbt-59.3 crank At a 3rd of theA precision CNC machined aluminum tool for the installation and removal of select threaded bottom brackets with 16 notch tool fittings, including Shimano Ultegra BBR60 and Deore XT MT 800 bottom brackets The BBT 59. 3 features integrated threads for full compatibility with the Park Tool BBT RS Bottom Bracket Tool Retaining System (sold separately) Fits 16 notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 4142 mm