I dropped to a 30T and used a Gates PC-139-1. I believe it is 1 tooth shorter in length.

 

Correct.

 

Barstock between cam and bump on swingarm is what I used. I tacked it at top and bottom with my mig welder and painted it. I used the 30t triglide pulley and kept my stock belt. I used an air end-grinder to elongate the slot in the swingarm about 1/4'' so I could keep the stock belt. I saved money and felt like this is important if traveling and break a belt. Total cost was less than a hundred bucks. I love the way it's geared now. This is the best mod for the money that I have done. Hope this helps. Allyn

 

32 tooth pulley= 140 belt
30 tooth pulley= 139 belt

31 tooth pulley= Something in between??? lol

I'm thinking harder about modifying the cam adjusters. I only need maybe a 1/8" or so. Have to check if I have room in the swingarm for the axle to slide back a little more.

 

Either way, block or modify the cams, you are going to have to remove some in the back of the swingarm slots, a barrel cutter on a diegrinder will do this nicely..I did the cam modification, worked fine for me, although either would accomplish the same thing..my thought was that if I decide to go 30 tooth, I could put the blocks in and still use the same belt, replacement on the road reason..stock is easier to find..Scooter

 

fwiw....i did the 30t andrews front sprocket and chain... very happy with the results...and the bonus was no more banging compensator!!! hells yeah!!!

 

On my 07 I used the HD International belt, it fits perfect!

 

You need a 139 tooth belt. If you did your research on this site the info is here.

 

dropped 1 tooth on my tranny sprocket. did the same as rhonda and blackjeep. cut the stock from a drill bit about 2 sizes thicker than the cam, cleaned to bare metal then exposy the piece on, then a little paint, never know its there and the bit was big enough that i didn't have to grind the axle slot bigger, still got some adjustment.

 

Was thinking of goin' to a 31 'cause my '07 RKC is geared too high stock. Will I have the same issue, or is the old style frame different?