Birzman Bottom Bracket Cup Tool Adapter (for BB9000 & BBR60) garminpromo gravel tracks

gravel tracks

SUPER SLR design makes use of a friction-reducing mechanism lever and cable that improves response and modulation

Eccentric leveling feet allow for easy adjustment on uneven surfaces

Definitive shifting performance

Fits EA3/E3/650A Rims typically on English 3 Speed bikes

Birzman Bottom Bracket Cup Tool Adapter (for BB9000 & BBR60) garminpromo gravel tracksConvenient adapter allows you to use your standard Hollowtech II BB tool on a BB9000 or BBR60 bottom bracket. Constructed of hardened steel Laser etched makings indicate BB type Insert into any Hollowtech II bottom bracket tool for compatibility with newer generation 39mm and 41mm outer diameter Shimano external bottom brackets like those found on Dura Ace 9000, XTR 9000 and Ultegra 6800