-The Signet has a 24mm thru hole (for use with 24mm cranks) and comes with both 22mm and 19mm adapter hat washers.
-6061 Aluminum.
-Bolt on style only.
-Made in the USA by Profile Racing
Fits 19mm, 22mm, & 24mm axles: Bore size is 24mm and supplied with 19mm & 22mm adapters.