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The Hope external bottom bracket is available with two different bearing options - stainless steel cartridge bearings, or ceramic bearings in stainless races.
All common systems are covered with this upgrade unit - making it ideal for Shimano, Race Face, FSA and others.
The custom, Swiss made bearings are double sealed, fully serviceable and removable, which give much greater life span than stock units.
Hope use precision Swiss bearings from INA which have been designed to run directly on the crankset axle, without the use of shims or spacers thereby increasing life and reliability.
Hope use a non contact, free running labyrinth seal to protect the bearing externally, and the machined aluminium centre tube is sealed internally with o-rings.
The MTB unit is suitable for 68 & 73mm shell.
Standard 6 colours are available on cups - red, blue,silver, black, gold and gunmetal, with the centre tubes being black on the stainless and gunsmoke on the ceramic.