1 inch
I have a 99 Sportser which should be the same. Mine just went out and it is located under the seat bolted to the rear fender.
It's a 140-90-16
130/90b16 73h
The newer customs are 16 inch
The Harley Davidson Sportster does not have a fuse box. It has a circuit breakers that are located behind the engine near the rear tire.
Remover the socket head cap screws from the fender struts and remover the tail light/ turn signal wiring from the tabs underneath the fender and you should be home free.
how do you change a rear turn signal bulb on a 2010 buick lucerne
the bulb with two elements in it is the turn signal and brake light bulb
www.ebay.com
A 2003 sportster has a chain drive for the promary, firm the engine to the transmission, and a belt drive final drive. The final drive is from the transmission to the rear wheel.
your rear bulb is blown - replace the bulb The turn signal blinks fast because the bulb is going out. That is also why the others dont blink.