Shimano 105 BB-5500 68x109.5mm Octalink V1 Spline English Bottom Bracket MFPN=W0A1800NIDMSA20790 }Park Tool TS-2EXT

}Park Tool TS-2EXT

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

120mm head tube

Enables lighter turning with less effort

size medium LxW (mm) 270x200 color black weight 225g

Shimano 105 BB-5500 68x109.5mm Octalink V1 Spline English Bottom Bracket MFPN=W0A1800NIDMSA20790 }Park Tool TS-2EXTShimano 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