I currently have the primary ripped apart on my stock 1998 fxdl. Laconia bike week is in 2 weeks and I don't want to have to take my father's heritage springer. I was replacing a few things in there and had a buddy throw the idea of a chain drive kit. I want to throw my own kit together with a PBI 23t front and a flat bung king 48t rear. I am not sure of the spacing requirements for the rear sprocket or the corresponding offset for the front sprocket. Any suggestions?

 

Why offset? Did you go larger rear wheel, wider tire?
if you're in NH then try vulcanworks.net. they have a 4697 part number. I think you may have to do the math and then figure your bike weight, your weight and your riding style. Lots of guys really over-gear their bikes.

Evo engines like to be 3500 rpms range. My experience has been that they thrive at that speed.
good luck!

 

so I guess my question would be that if I do not need an offset front sprocket, what size spacer do I need for the flat rear sprocket. The Vulcan kit looks decent but if im spending the money I want top quality parts (pbi front, ARP bolts, ek chain)

 

Break it down more fundamentally than your thinking goes.
inner primary off, pulley off; is the transmission any further inboard, outboard?
Rear wheel pulley off, did the hub move too? If it did then what about new spacers?
Tie a string or get a long straight edge. A metal ruler from Lowe's can work here.
What i meant to add is that your answers will come from mock-up. I'm actually not too sure if there is a kit that you can buy that would be 100% reliable on a 22 year old junkbox. Mine is a POS too so no offense meant there!

 

I think I'm running a .50" offset up front on my 94 Ultra. Best way is to mock it up and use a straight edge.
Depends on if you're using a flat rear or a dished one as well as to what you run. I run flat rear ones.
Plan on ditching the lower belt cover as well.

Griz

 

After rereading your initial post I think time is not your friend. Honestly, a lot of the things I've changed on this bike I had to buy one then assemble then re-buy then refit then reassemble.....

Unless you're like my wife and buy every combination of sizes of parts then return what you don't use I think you're in for a few days down time

 

Why a chain drive? Been there done that... Went back to belt, even on Hi horsepower drive trains..

 

An engineer was the first to give me the sage advice;
"If it ain't broke, don't fix it"

 

Harley dudes, "if it ain't broke, fix it." 😉 😉