Anyone know if I can use a 09-12 rear pulley on my 08 road king? the 09 is two teeth larger. I will be changing belt to new stock, front pulley to new stock and I found a clean used rear pulley from a 09 which is two teeth larger and want to know if I can use it. I pull a trailer and sixth seems a little low once in a while.....I know the rear tire and rim is larger, but not sure about the offset or clearance issues...anybody? and no, its not covered in my factory manual for 08 touring

 

It won't work as the 08 and 09 hubs/IDS are too different.
The 08 has an external self contained IDS/sprocket and the 09 has a sprocket that is half of the IDS and inserts itself into the wheel hub which houses the other half of the IDS bits...

I've read that you can run a Japanese sportster sprocket on your bike which is larger. Might loose your IDS though.

 

Hmm...didn't believe me eh

https://www.hdforums.com/forum/prima...road-king.html

 

An alternative is to use a smaller front pulley. Any such change is likely to require a new belt.

 

Seems as if he didn't.

 

u can use the japanese sportster pulley and RETAIN ids, their are also pulleys for sportsters that will let u run without the ids.or do the front pulley or do the evo industries clutch gear kit.

 

Added info with pics for those unfamiliar with bolt-on vs. integral IDS (Isolated Drive System) aka "Cush Drive"

https://www.hdforums.com/forum/primar...road-king.html
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Link doesn't work.

 

Thanks SB...edited above. Should work now (but same link as earlier post)

 

It's the Japanese sportster pulley 08 year model I think. It works great. I just installed one on my 08 SG. What a difference it made too.