Shimano Deore SM-BB52 External Cup Bottom BracketShimano, Deore SM BB52, External Cup BB, British, 83mm, 24mm Shimano, Deore SM BB52, Hollowtech II bottom bracket, BSA, 68 E 73mm, 24mm, Steel, Silver, ESMBB52B Compatible with all mountain Hollowtech II cranks

For Use with standard size clamps and bars

The longer wheelbase and slightly wider trucks allow for a surfier feel and more stability without sacrificing agility

while cotton yarns ensure vital comfort for all-day wear

Endurexx: With chlorine-resistant LYCRA® X-Life

MAXTRAC™MAXTRAC™A perfect combination of grip

Sprocket Material / Finish: Chrome Plated

The Ventilator 2 meets the comfort needs of any recreational cyclist

Attachment: Frame rack bosses

FRAMESeries 2 6061 Aluminum

4mm lateral adjustment

16g•Black

and reduced brake squeal