Park Tool BBT-179 Steel Bottom Bracket Tool MFPN=101-4504-12-106-9 With our free app for

With our free app for iOS and Android phones

5" head tubes delivering solid steering precision and bearing longevity

Siping creates a more conforming lug for added traction TPI 60 Color Black Defined Color Black ISO Width (mm) 38 ISO Diameter 584 / 650b / 27

MarvoLT Xpress shifters are smooth simple and easy to use

- Axial seals on bearings and O-rings to fully protect all surfaces

Park Tool BBT-179 Steel Bottom Bracket Tool MFPN=101-4504-12-106-9 With our free app forConstructed from precision machined 4140 steel the BBT 179 is a heavy duty tool for the removal and installation of select bicycle components with an 12 notch tool fitting Features an extra deep body to accommodate extra wide spindles and low profile walls at the point of engagement for recessed lockrings Fits 12 notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 4547mm and a minor diameter (inside of notches) of