Speed-o-meter

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Dec 20, 2011 | 07:59 AM

6 gun

Thread Starter

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Joined: Mar 2008

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From: Central Texas

Speed-o-meter

I'm looking at swapping out my stock 32t tranny pulley for a 30t on my 07 Road King Classic. Now here is the problem, by doing this it will throw my speedometer off about 5 mph, but my bike is already 5 mph off. That will
mean my speedometer will show me that I'm doing 80 mph when I am only
going 70 mph. Can a dealer ship adjust the speedometer to match the bike?
I have the SERT in my bike now

Dec 20, 2011 | 09:33 AM

cHarley

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Joined: Feb 2007

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From: Boynton Beach, FloriDuh

I believe you need to look at one of THESE.

Dec 20, 2011 | 12:00 PM

mswmn

Road Master

Joined: Mar 2010

Posts: 789

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From: Minnesota

Quote:

Originally Posted by cHarley

I believe you need to look at one of THESE.

Well played cHarley...

Dec 20, 2011 | 02:50 PM

dickey

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From: Florida

I have an '07 RKC & I feel the gearing is a little too tall for my use, but my SM told me that HD doesn't make a different size sprocket for front or rear. Are you going aftermarket? Also, what about the belt? I'm thinking it may then have too much play to adjust properly.

Dec 20, 2011 | 03:48 PM

6 gun

Thread Starter

Seasoned HDF Member

Joined: Mar 2008

Posts: 9,384

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From: Central Texas

Quote:

Originally Posted by dickey

https://www.hdforums.com/forum/touri...ey-change.html this is where I got the idea from and yes I'll go after market if I have to there are links for sprockets & belts

cHarley thank you for the link now I know that it can be done.
You have the HD mirror chrome thunderstar wheels don't you
I got the thunderstar black wheels

Last edited by 6 gun; Dec 20, 2011 at 04:22 PM.

Dec 20, 2011 | 04:25 PM

qtrracer

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Joined: Jan 2008

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From: SoCal

Quote:

Originally Posted by dickey

There is a 30t front pulley that HD makes for the trike('10 or '11) that some are putting on(07 and up with the 6 speed) and I have the 68t rear pulley that was made for the Japanese sportster on my 08 and that should also fit your 07. Some are also doing both. My 68 swap needed no belt change, the 30t will need a shorter belt, using both at the same time should not need a belt swap. All the part #'s and info are on this forum as thats where I found it.

Dec 20, 2011 | 05:23 PM

FBFletch

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Joined: Dec 2005

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From: Hickory, NC

Quote:

Originally Posted by cHarley

I believe you need to look at one of THESE.

+1 on the SIM-1. That's what I'm using on my bike.

Quote:

Originally Posted by dickey

Yep. You'll have to go aftermarket to get a different size primary drive gear. I know Baker makes one cause that's what's on my bike. When we went from the 32 to a 30 tooth primary drive gear on my bike, we went from the stock 135 tooth Softail belt (1-1/8" wide) to the stock 133 tooth Dyna belt of the same years ('00-06).

Make sure you verify this but your '07 RKC should use a 1" - 137 tooth belt. For your bike, there's only a couple of options for a shorter belt that I know of (assuming you go from a 32T to 30T primary drive gear). The 136 tooth belt (1" wide) used on the '07-11 Sportsters (which still may have too much slack) or the 133 tooth belt (1" wide) used on the '07-11 Softails (which may be too short).

Last edited by FBFletch; Dec 20, 2011 at 05:33 PM.