Nitto Stem Expander Bolt
Framebuilders who make their own stems often have a hard time finding expander bolts, because standard bolts don’t fit. We now sell Nitto’s excellent expander bolts, the same that are used on the Grand Bois stems.
An expander wedge is not included. Framebuilders can make their own much lighter wedge from the same tubing used for the stem – as shown in this photo by Corey Thompson.
Made in Japan.