Crank puller

A crank puller threads into a crank arm and pushes against the spindle to pull the arm off. You need one to replace a crank arm, reach a cadence pedal assist sensor that sits behind the crank, or service the bottom bracket on many bikes.

What it's used for

• Replacing a bent or stripped crank arm. Rad Power Bikes sells replacement crank arms for its bikes (Rad replacement parts).
• Getting at a cadence sensor or magnet ring behind the crank. See Pedal assist sensor.
• Chasing a creak from the crank area, as in E-bike noises.

What to look for

• Your crank's bolt size. Park Tool's CCP-22 fits three-piece cranks with an M8 or M10 crank bolt, including square taper, SRAM PowerSpline, FSA Power Drive and BNI cranks on Bosch e-bike systems (Park Tool CCP-22).
• Bigger bolts need a different puller. Park Tool says the CCP-22 doesn't fit cranks with an M12 or M14 bolt, such as ISIS Drive or Octalink, and points to its CCP-44 or CWP-7 for those (Park Tool).
• Thread. The CCP-22 is made for crank arms with M22 x 1.0 extractor threads (Park Tool). Thread it in fully by hand before you turn the handle, or you can strip the crank.
• Mid-drive motors. On a mid-drive, the crank sits on the motor's spindle. Use the motor maker's procedure, and leave anything past removing the crank arm to a shop.

Typical price

• Park Tool lists the CCP-22 Crank Puller at $21.95 (read Nov 9, 2026) (Park Tool).
• Rad Power Bikes lists a replacement crank arm at $27.50, shown out of stock (read Nov 9, 2026) (Rad).

Where to buy

1. The tool maker or its dealers, such as Park Tool.
2. A local shop, through find a shop, which can also do the job for you.

Guides that use it

• Pedal assist sensor
• Pedals
• Torque wrench

Sources

• Rad replacement parts, radpowerbikes.com
• Park Tool CCP-22, parktool.com

Stuck after these checks? Find a shop near you.