Our iconic spoke wrenches have been a mainstay of our product lineup since we introduced them over 50 years ago. With their simple design and professional quality, they’re still the favorite of bike mechanics around the world. Each Park Tool SW-0 is made in the USA, and is precision-stamped, hardened and nickel plated for long service. Park Tool spoke wrenches are vinyl dipped to indicate the size at a glance.

K-SW-0 (Black) 80 ga./.127” nipple/3.23mm
Sized for spoke nipples with 3.23 mm (0.127″) wrench flats
This size is often found on higher-end bikes
Typical compatible nipple brands include DT Swiss, Sapim, Wheelsmith, Pillar, and many others — always measure to be sure

K-SW-1 (Green) 80 ga./.130” nipple/3.30mm
Sized for spoke nipples with 3.30 mm (0.130″) wrench flats
This size is typically found on older American-made bicycles, including many vintage Schwinn models and wheels built with Union or Torrington spokes. It is not as common on modern bicycles — always measure to be sure

K-SW-2 (Red) 80 ga./.136” nipple/3.45mm
Sized for spoke nipples with 3.45 mm (0.136″) wrench flats
This size is often found on most department store bikes, as well as many other low-to-midrange bikes — always measure to be sure

K-SW-3 (Blue) 105 ga./.156” nipple/3.96mm
Sized for spoke nipples with 3.96 mm (0.156″) wrench flats
This size can be found on select Shimano wheels, hub-drive e-bikes, & wheels found on “heavy duty” bikes — always measure to be sure