I am in the process of putting the solid rear wheel from a deuce on a 09' Dyna project that I am piecing back together. My dyna has the 32T front pulley and I intend to run the 70T rear pulley that came with the deuce wheel. My question is what size of belt will I need to buy? I do not have the stock belt. I know the stock rear pulley would have been 66T, with a stock 131T stock belt. I intend to run a 70T, how much larger of a belt will I need to buy? I know that it could be measured and I could probably figure it out from there....however the wheel is in the shop right now getting the bearings swapped and I would like to go head and order a belt so to minimize my down time.

 

Just get a belt for an 06 dyna, 06 had 32f 70r pulleys and get a tri glide 30t pulley while your at it...

 

06 was a 1.125" wide belt and pulley the 07 and up are 1" just so you know

 

06 belt if you're going to run just the 70 tooth. I'd do the 30 t trans pulley while you're there and an 07-up belt.

 

Do the 30t. You'll have to pull the primary to swap the belt anyway.

 

Its a BUDGET build. I am going to run the 32T and 70T pulleys because that is what I have. Yes I know this is "gearing" it down, and perfectly fine with that. My question is about the belt length, and belt length only.

 

If your going from a 66 to a 70 that should make it nicer to ride a little more pull. Probably just a less change than doing just the 30t front. Remember your speedo maybe off a tad.

 

+1 The 30T arrives today (I hope) and then the 70 on the back.

BUT, to answer your question, the '06 Dyna belt would be the one.