The Ball-steel,1/4 is the cheapest item from this partsfiche.
Some items from this specific schematic: Race-strng Bearin-ste, Cone-strng Stm Brng, Race-strng Stm Brng, Bolt,flanged,16x22.
The Ball-steel,1/4 is the most widely applied product in the EX250F15 NINJA 250R 2001 USA CALIFORNIA FRAME ( thirty-nine times ).