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
The CM-5.3 can handle any bike-specific chain, from wide 3/16" single-speed* to narrow 12 and 13-speed. A reversible handle allows the chain to pass through forwards or backwards for compatibility with center drive e-bikes.