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Pedal wrench

A pedal wrench is a long, thin 15 mm wrench for pedal flats. Park Tool's PW-5 lists at $27.95 on Park Tool's own store.

Last edited Nov 8, 2026 by Pedalwise team Edit History Add a subpage

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A pedal wrench is a long wrench with a thin 15 mm jaw that fits the narrow flats on a pedal spindle. The length gives you the leverage that tight pedals need, and the thin jaw fits where a normal wrench won't.

What it's used for

  • Removing and fitting pedals. See replace pedals. Rad lists a 15 mm pedal wrench for its pedal swap and tightens pedals to 35 Nm (Rad).
  • Checking pedal tightness during a monthly bolt check.

What to look for

  • 15 mm thin jaw. Park Tool says the PW-5 is made to engage the narrow 15 mm flats found on pedals (Park Tool PW-5).
  • Length. The PW-5 is 11.5 inches long (Park Tool PW-5). Longer wrenches give more leverage on stuck pedals.
  • Check for a hex socket. Park Tool says some pedals take a 6 mm or 8 mm hex key from the back of the crank instead, and some have no flats at all (Park Tool). Look at your pedals before you buy.
  • Not a cone wrench. Park Tool warns never to use a cone wrench as a pedal wrench (Park Tool).

Best price we found

Prices change often, and a local shop may match them.

Where to buy

  1. The tool maker, such as Park Tool.
  2. A large bike retailer, as above.
  3. A local shop, through find a shop.

Videos

How To Change Pedals: Remove And Replace Your Bicycle Pedals from Global Cycling Network: Uses a pedal wrench on each side and explains the reverse thread on the left pedal.
Every Park Tool Pedal Wrench Explained and Demonstrated from Chris Enockson: Compares long and short pedal wrenches and the hex key style and when each one fits better.

Guides that use it

Sources

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Guides that use this

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