ATLAS CRANKS 165MM -83MM WIDE THESE ARE NEW IN THE BOX. NO BOTTOM BRACKET Manufactured from OPTIM-AL, over 20% stronger compared to the commonly used 7050 alloy EXI interface complete with one key hex release puller cap Fat tab technology – increased strength and compatible with all 4.5mm tab offset bashes Light weight removable granny ring 5mm of configurable chainline adjustment – insuring chainguide compatibility