If it is stock, you can count on it being 3/4".
It is 1 inch. F.Y.I. Just about every harley since 2000 is 1". Just about every harley before 2000 is 3/4.
3/4"
60 ft lbs
You should have a 1" axle front and rear.
harley sportster front axle torque specs
1 inch.
Hello: I bought a set of wheels off ebay, And the guy said they were off a 2001 ultra classic witch is the same as a roadking. They had one of each (3/4"& 1"). 2002 and up have (1") on front & rear. 1999 has ( 3/4") front & rear. I think 2000 could be the same as 2001. Badbilly Type your answer here...
It should be one inch.
1 inch
some have set screws and some just press on.
36 mm
31" from top of yube to axle