Shimano Saint BB80B 68/73mm Hollowtech II English Bottom Bracket MFPN=20216 or around the neck when

or around the neck when not in use

The Zeppelin was engineered to deliver high volume for support

The narrow-wide chainring is designed to retain the chain without the need of a chain device

and better handling in a no compromise

Shimano Saint BB80B 68/73mm Hollowtech II English Bottom Bracket MFPN=20216 or around the neck whenShimano Saint BB80B 68 73mm Hollowtech II English Bottom Bracket. Shimano Saint BB71 BB80B BB80D Hollowtech II Bottom BracketsIncludes 3 x 2. 5mm spacers TECH SPECS Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 68 BB Shell Width (mm) 73 Spindle Interface Type Shimano Hollowtech II Defined Color Gold