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The RPM Powerpro ISIS Bottom Bracket has a forged hollow chromoly spindle, ISIS, deep groove full complement sealed cartridge bearings, composite anti-creak sleeve and new improved external water seals.
Click here for more information and to buy
The RPM Powerpro ISIS Bottom Bracket has a forged hollow chromoly spindle, ISIS, deep groove full complement sealed cartridge bearings, composite anti-creak sleeve and new improved external water seals.