Changing pulleys (sprokets).... Want to gear up : V-Twin Forum: Harley Davidson Forums

arthur6 · 09-27-2009, 06:32 PM

Guys, ....03 Softtail Standard....
How many teeth are on the rear pulley of Softtail? 70 teeth ??
I’m looking to gear mine up (slower revs at 75mph)
The front is 32 teeth, I can get a 34t but will be pretty hard to swap.
So… I THINK the rear is 70 teeth, I see some 66t pulleys on-line used, seems that would be easier to change.
Will these swap?
THANKS

claydbal · 09-28-2009, 10:54 AM

have you considered a larger motor sprocket?

arthur6 · 09-28-2009, 11:27 AM

Larger motor pulley... Yes, I looked into it.
A motor pulley is about $125... hard to change.
A rear pully is about $70.... easy to change.
This the question...
Will a pulley form a Dresser/Bagger (66t) fit my 03 Softtail??
My Softtail has a 70 tooth pulley.
Thanks

claydbal · 09-29-2009, 10:07 AM

the belt is harder to change than the motor sprocket/primary chain. also, if you change motor sprocket, your speedo stays accurate.

arthur6 · 09-29-2009, 11:08 AM

Oh...
I was talking the TRANS Pulley
I see you guys are talking the ENGINE sprocket
Have not considered that
Is it hard to change?
I'm guessing I'd go bigger (more teeth)?
How many more? 1? 2?
What different teeth can I choose from?
Anyone here changed one?

claydbal · 09-30-2009, 10:24 AM

question: do you have the power required to pull taller gearing? can you deal with the additional heat? will you be ok with the drop in economy? you can potentially damage the drive train also.

there is a reason most go the other way on gearing.

3000 rpm at 70 mph is revving too fast for you? its your bike, just want to make sure you know the issues before spending time and money to drop 300-400 rpm and cause problems.

yes, you would go larger on sprocket.