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Primary gear ratio confusion

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Old Dec 21, 2018 | 05:59 PM
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Default Primary gear ratio confusion
Wanting to change my overall gearing on my 2015 Road Glide to 3.5 - 3.75 for better torque, I am planning to convert the belt to chain drive for easier setup and I am thinking about 24 transmission sprocket with either 55 or 58 rear wheel sprocket but I am struggling to find any information regarding stock gears teeth count on the primary, I know the front compensator sprocket is 34 T but I couldn't find any information whatsoever on the clutch gear tooth count. Please enlighten me folks! Thanks!!
 
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Old Dec 22, 2018 | 06:20 AM
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It's in your FSM! Looks like the clutch sprocket is 46T.
 
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Old Dec 22, 2018 | 06:49 AM
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You need to get a sportbike. Spinning a lot of wheels to end up with a silly chain drive.
 
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Old Dec 22, 2018 | 10:23 AM
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You don't say what you are starting with and if it has cruise control. On throttle by wire bikes with cruise control, the cruise will be made inoperable when the engine rpm and transmission output shaft rpm are no longer within a pre loaded acceptable ratio. Each gear is loaded into the computer, my cruise works fine in 3rd,4th,and 5th, so if by accident you change your primary by one lower gear in the transmission, the cruise should still work.
 
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Old Dec 22, 2018 | 01:58 PM
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Just go to www.bigboyzheadporting.com & click on calculators &go down to gear ratio & drivetrain calculator.
 
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Old Dec 22, 2018 | 10:19 PM
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Originally Posted by grbrown
It's in your FSM! Looks like the clutch sprocket is 46T.
Gotchq, you're right it's 46 tooth
 
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Old Dec 22, 2018 | 10:21 PM
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Originally Posted by RIPSAW
You need to get a sportbike. Spinning a lot of wheels to end up with a silly chain drive.
Had an MV Agusta Brutale 1090RR tuned to 152hp last year, only fun for two months before I got bored with it. Harley forever dude, Harley forever... 🤙
 
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Old Dec 22, 2018 | 10:23 PM
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Originally Posted by btsom
You don't say what you are starting with and if it has cruise control. On throttle by wire bikes with cruise control, the cruise will be made inoperable when the engine rpm and transmission output shaft rpm are no longer within a pre loaded acceptable ratio. Each gear is loaded into the computer, my cruise works fine in 3rd,4th,and 5th, so if by accident you change your primary by one lower gear in the transmission, the cruise should still work.
I said it on first post, 2015 RGS, so it's TBW with 6th gear indicator and cruise. I am aware regear will screw that up but I have PV to reprogram the VSS and I also have the privilege of unlimited free of charge access to Centurion.
 
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Old Dec 22, 2018 | 10:24 PM
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Originally Posted by DTTJGlide
Just go to www.bigboyzheadporting.com & click on calculators &go down to gear ratio & drivetrain calculator.
It worked wonderfully, thanks for that 👍
 
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Old Dec 23, 2018 | 07:28 AM
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Originally Posted by uwiik
I said it on first post, 2015 RGS, so it's TBW with 6th gear indicator and cruise. I am aware regear will screw that up but I have PV to reprogram the VSS and I also have the privilege of unlimited free of charge access to Centurion.
You sure did. I normally get annoyed when others are asleep while reading, this time it was MY turn. Will try to do better.
 
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