Park Tool HCW-4 Crank and Bottom Bracket Wrench cassons largest sprocket: 51 teeth

largest sprocket: 51 teeth

with no loss of efficiency

straight-pull

gravel and E-MTB applications

but rely on the automatic adjustment of the rear derailleur

Park Tool HCW-4 Crank and Bottom Bracket Wrench cassons largest sprocket: 51 teethThe Park Tool HCW 4 is a double ended wrench that fits two common fittings found on adjustable cup and cone bottom brackets. One end is compatible with the raised 36 mm wrench flats commonly found on fixed cups, and the opposite end features a pin spanner with two pins to fit many adjusting cups with pin holes. Heat treated and nickel plated for a lifetime of use. Specifications Center to center measurement between pins: 29 mmPin diameter: nominally