The swingarm bolt is straight. The threads are good.

O.E.M Part Number 34X-22141-00-00

Make	Model	Year	Submodel
Yamaha	TTR225	1999	All
Yamaha	TTR225	2004	All
Yamaha	TTR225	2003	All
Yamaha	TTR225	2002	All
Yamaha	TTR225	2001	All
Yamaha	TTR225	2000	All
Yamaha	XT225	2007	All
Yamaha	XT225	2006	All
Yamaha	XT225	2005	All
Yamaha	XT225	2004	All
Yamaha	XT225	2003	All
Yamaha	XT225	2002	All
Yamaha	XT225	2001	All
Yamaha	XT225	2000	All
Yamaha	XT225	1999	All
Yamaha	XT225	1992	All
Yamaha	XT225	1998	All
Yamaha	XT225	1997	All
Yamaha	XT225	1996	All
Yamaha	XT225	1995	All
Yamaha	XT225	1994	All
Yamaha	XT225	1993	All
Yamaha	TT225	1986	All
Yamaha	TT225	1987	All
Yamaha	TY250	1974	All
Yamaha	TY250	1976	All
Yamaha	TY250	1977	All