Doesn't matter if you lose a bit off of sixth gear's top speed as you will never reach top speed in 6th on the road, mine on the dyno did near 300 kph in 6th !!!

A bit of work to change pulley for some one not very experienced or without the needed tools but a very good modification for sure

 

when I bought my 2002 RG,it had a 95" HQ kit on it (its 124" now),the heads where less than impressive.ide get your heads flow tested to see where their at and go from there

 

..............and also be aware that you may see a tick less on paper with that 30T..........but the mechanical leverage will have you feeling that the bike has more.
Scott

 

I did a thread on this mod a couple years ago and it should answer most of your questions with pics:

https://www.hdforums.com/forum/dyna-...y-install.html

 

A 107" can tap on 130 hp.
Target64's build is an example of just that.
Semi-same build, but with our Stage III Super-Tour Heads on a 98"er is currently being tuned over in Drakett, Mass, at D.A.S.
119.3 hp, sae, and they now need more injector...........
It'll more than likely blow well over the 120 plus mark once finalized.
Scott

 

Interesting fact there! I thought it would show more torque or at least the same but earlier.

 

Thought the same....never dynoed before the gear change, but I thought it would show a bit off torque.

 

Thank you everyone for your thoughts and ideas, and especially HD Pilot for your excellent write up. I will go with the 30t gear as this sounds like the best solution for me (for now Lol.) It looks like this will be more of a winter project too as I don't want my bike down for anything more than a day or two during summer riding season. In hindsight I really should've just saved up a little more cash and bought the S&S 124 engine. My 107 kit with everything including parts, labor, tuning etc, ran around $4500, for a little more I could've stepped into a whole new league. I'm not disappointed with the 107's performance, but I believe this power and torque level should be the minimum factory standard for all HD bikes. Unfortunately after a year of riding with the 107 I'm now used to it and it's no longer enough, so here I go again chasing after the ever elusive higher HP and TQ.

 

I built a 107 that made 132/126 its about the limit a 107 can do without spending major money on the bottom end. If you want more than that build a 124.

 

Have a 108" Evo(4 3/4" X 3 13/16") that used to run 165-167 hp/144-146 ft/lbs........but it did not have room for a license plate.....
Scott