Shimano 105 BB-5500 68x109.5mm Octalink V1 Spline English Bottom Bracket MFPN=11.4018.009.034 Constructed from 6061 sandblasted aluminum

Constructed from 6061 sandblasted aluminum

5% even as weather conditions change and boasts unbeatable battery life (User replaceable CR2032 battery with 200-hour battery life)

Chainring bolts - stock 2x bolts will not work

model FCMX0 length 175mm direct mount/BCD 4x96mm configuration 1x spindle interface 24mm (73mm BB) chainline 53mm material aluminum color black

Shimano 105 BB-5500 68x109.5mm Octalink V1 Spline English Bottom Bracket MFPN=11.4018.009.034 Constructed from 6061 sandblasted aluminumShimano BB 5500 Octalink V1 Bottom BracketsFits Shimano Octalink V1 Spline Cranksets FC 7700 FC 7703 FC 6500 FC 6503 FC 5500 FC 5501 FC 5503 FC 5504 cranks Crankarm fixing bolts not included Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 68 Weight 250 Spindle Interface Type Shimano Octalink V1 Spindle Length 109. 5 Defined Color Silver Interface English Dimensions 68 X 109. 5Mm