I put almost a 1,000 miles on the on the new Primo-Rivera OverDrive gear set along with the 25 tooth motor sprocket (tried the 24 but I like the 25 better) with the 36 tooth clutch basket. The tranny has a 30 tooth and the rear wheel has a 68 tooth 1.125" belt and pulley. S&S said their new belt will handle the 124 just fine, so I bought it.
The tranny shifts smooth with no gear whine or noise. The gear set was beefy. The local shop was impressed with it. The only problem was the neutral light did not ground to the shift drum not completing the circuit to make the neutral light work. A slight mod to the thickeness of the washer under the switch solved the problem and it fine.
The old 5 speed was in great shape but I wanted better gearing for around town and small two lane scenic roads where I live. It is all working together with the S&S V111.
All I can say is WOW!!!!!!!!!WOW!!!!!!!!!!!!!!!!!!!WOW!!!!!!!!!!!!! What a thrill to ride!
On the Barnett Scorpian Clutch I had to put 6 green springs( 82 lbs each = 492 lbs max for racing was 6 red springs for 600 lbs) in to prevent the clutch from slipping when I twist the throttle above 4300 RPM. Bike has 116 HP@5600 RPM and 122FT.LBS@ 3800 RPM. 1st gear has a 2.94 ratio and 6th OD is a.86 ratio.
36/25= 1.44 clutch/motor, wheel/tranny 68/30=2.266, 1.444 x 2.266= 3.264 final ratio on 5th gear. 6th gear is 2.80 the Stock bike was 2.925.
The bike has the power to pull it just fine even riding two up with gear. The number from the Baker gearing site confirms close what I am actually getting.
http://www.bakerdrivetrain.com/oldgearratios/rpmCalc.htmStock was 80 MPH @3100 RPM now with Big Motor and 6 Speed 80 PMH is at 3K RPM.
I Really Really Really like it a whole lot!!!!!!!!!!!!!! My wife can't wipe this smile off my face no matter how Mad she makes me at times!!!
Ltank