Shimano 105 BB-5500 68x109.5mm Octalink V1 Spline English Bottom Bracket MFPN=W0A1800NIDMSA20790 Pressure mapping technology was used

Pressure mapping technology was used to precisely determine where increased support is needed

Color Black Pad Attachment Style Bolt-In (Caliper) Rim Compatibility Standard Intended Brake Type Caliper Pad Type Cartridge

New tread pattern featuring 2 rows of ramped center knobs paired with larger more aggressive should lugs for improved traction without a penalty to rolling resistance

Up to 8mm of cable can be released

Shimano 105 BB-5500 68x109.5mm Octalink V1 Spline English Bottom Bracket MFPN=W0A1800NIDMSA20790 Pressure mapping technology was usedShimano 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