Park Tool Bottom Bracket Lockring Tool

product: Bottom Bracket & Rotor Lockring Tool type: 16-notch bottom bracket and lockring tool compatible with: Shimano Hollowtech II, SRAM/Truvativ GXP, Race Face X-Type, FSA MegaExo, Campagnolo, Chris King, Hope, disc brake rotor lockrings and other 16-notch systems material: steel brand: Park Tool additional information: designed for installation and removal of 16-notch bottom brackets and rotor lockrings also fits Shimano Hollowtech II crank arm preload caps (TL-FC16 / TL-FC18 compatible) fits tool fittings with a 44–45 mm outside diameter durable steel construction for workshop and home use