The Park Tool CNW-2 Chainring Nut Wrench, click to enlarge

Item # CNW-2

/ Tools / Crank & Bottom Bracket

Chainring Nut Wrench

The CNW-2 makes chainring bolt and nut installation and removal easy. It securely holds the unique slotted chainring nuts in place to prevent slipping while tightening or loosening the bolt. Double-ended to fit most slotted-type nuts.

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CNW-2 Features

  • The outer width of both ends of the CNW-2 are nominally 12 mm wide
  • One end has a two outer tips nominally 2.7 mm wide each, and the other end has tips of 3.8 mm each
  • The blade thickness is nominally 1.35 mm