Shimano Dura Ace 7700 Octalink Bottom Bracket English 109.5 x 68mm
+ Installed Ceramic Ball Bearings from Ceramic Speed
Ball bearings are ceramic which are under the most load and stress. The needle bearings which just help guide the spindle are stainless steel since it would not make a difference with ceramic.
New and Unused
+ Installed Ceramic Ball Bearings from Ceramic Speed
Ball bearings are ceramic which are under the most load and stress. The needle bearings which just help guide the spindle are stainless steel since it would not make a difference with ceramic.
New and Unused
- Oversize BB Axle with Splined Ends
- Large 22mm diameter hollow pipe billet axle reduces weight.
- Splined ends provide a more rigid, non-loosening crank assembly.
- Compound Bearing Structure
- Ball and needle bearings support the spindle to reduce flex