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Gearing Change Question

Started by TexanKen, March 19, 2019, 11:11:31 AM

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TexanKen

Hoping someone can help me with what parts would be needed to end up with a 3.37 gear ratio setup on a '16 Ultra with the six speed cush drive tranny.
Need a little more bottom end UMPH..... :scoot:
Know guns, know peace, know safety. 
No guns, no peace, no safety.

rigidthumper

30 tooth engine solid sprocket & shorter chain and a 31 tooth trans sprocket gets you 3.36. You'll need a tuner (TTS, PV, DL) to correct your speedometer/gear indicator.
Ignorance is bliss, and accuracy expensive. How much of either can you afford?

Ironheadmike

 A 30T trans and a 70T wheel .

rigidthumper

Quote from: Ironheadmike on March 23, 2019, 07:44:11 AM
A 30T trans and a 70T wheel .
That takes him from 2.875 to 3.15. If he adds a 32 tooth engine sprocket, that combo will get him to 3.35
Ignorance is bliss, and accuracy expensive. How much of either can you afford?

Hybredhog

Quote from: rigidthumper on March 23, 2019, 08:05:13 AM
Quote from: Ironheadmike on March 23, 2019, 07:44:11 AM
A 30T trans and a 70T wheel .
That takes him from 2.875 to 3.15. If he adds a 32 tooth engine sprocket, that combo will get him to 3.35


    If you did either one of these alone will get you pretty close, and from there its personal preference if you want to drop it more or not. I'd say to take a good look at your compensator, & see if it's getting beat up, and that can determine which direction you may want to go. The 30t route is cheaper if your doing your own work and gives you more room during tire changes. Hawg out your rotor area of the primary while your there, in case you ever need a stator.
'01 FXDXT, '99 FXDL/XRD, '76 FLH

Ohio HD

You can use a 32 tooth motor sprocket, and 49 tooth clutch basket and get 3.254:1.

Wouldn't have to remove the inner primary, swig arm, etc to change the belt and sprockets for the rear wheel. Speedometer would stay accurate. But you would need a tuner to correct the cruise control [if you have it] and sixth gear light.