Park Tool Park BBT-7 Bottom Bracket Lockring Tool

(discontinued)

Park Tool's new BBT-7 Lockring Wrench is used for installing and removing the adjustable cup lockring used Dura-Ace and XTR Bottom Brackets (M950) using a left side lockring. (NOTE: XTR M952 and Dura-Ace 7703 cartridge bottom brackets use the BBT-2 only.) The BBT-7 is laser cut and engages five of the lockring's six notches for a precise, secure fit. The handle is vinyl dipped for comfort. While made specifically to fit Dura Ace and XTR Lockrings, it fits several other model and brand of lockrings as well.