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When the day comes when bearing replacement is needed
Studies have shown that frictional loses at the derailleur are not merely fractional losses
short bearing life
reliable drivetrain operation
PressFit30 (73mm) for Dub (29mm) MTB Crank Sets Crank:DUB This product is not endorsedInfo Installation Instructions Video Specifications JUST THE FACTS: Our DUB PressFit30 bottom bracket module works with all DUB mountain bike crank sets on the market. All of our modules ship with the special press tools and retaining compounds you'll need. All you need is the press. ABOUT OUR BEARING CHOICES: Ceramitech Bearings: Our Si3n4 hybrid ceramic bearings feature ultra spherical silicon nitride balls matched to SAE 52100 chrome steel bearing
