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8mm diameter (direct mount) and 25-26mm (when used with supplied spacer)
allowing for precise adjustments on the fly
is made with a slightly larger outside diameter (23mm) to fit the Falcon Freewheel
The tips of our proverbial lightweight icebergs are still our Racing Concept models (RC)
with easy-to-read labels for quick identification of any size
Park Tool Bottom Bracket Retaining Sytstem Bbt-rs drumbeat21-618 8mm diameter (direct mount) andBottom 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 with nearly any Park Tool bottom bracket tool, the BBT RS uses a spring based tension system to apply consistent,
