Sealed-cartridge square taper bottom bracket with a 103mm JIS spindle, designed specifically for use with Sugino RD2 and RD4 Mighty Comp cranksets.

 

ⓘ The blue stuff on the threads is medium-strength thread locker, which prevents the cups from loosening over time, even when a thin layer of grease is used. Don't try to scrape it off, it's a good thing. 

Specifications

• 68mm English threaded (BSA)

• steel body & cups

• spindle length/type: 103mm SG Mighty Taper (JIS square taper)

• bearing type: steel sealed cartridge

• crank arm bolts not included

• requires Sugino TL-CBB bottom bracket tool or similar for installation & removal