Go Back   Harley Davidson Forums > General Harley Davidson Tech Forums > Primary/Transmission/Driveline/Clutch
Sign in using an external account
Register Forgot Password?
Register Photos FAQ Members Search Today's Posts Mark Forums Read VendorsGarage
Search

Primary/Transmission/Driveline/Clutch Find answers to general Drivetrain and transmission questions here.
Sponsored by: Baker Drivetrain

Welcome to HDForums.com!
Featured Articles:
Well, that's one way to get people to your dealership. I know the appeal of V-twins...
Read More

Harley is streamlining it's lineup of motorcycles for 2014 by dropping six bikes...
Read More

As a kid, I never got mules. I'd watch old cowboy movies and thought that anybody...
Read More


Reply
 
 
 
P
 
Thread Tools Search this Thread
  #1  
Old 01-29-2011, 11:40 AM
jlturner jlturner is offline
Hang Around
Garage is empty, add now
Join Date: Sep 2009
Posts: 38
Red face Gear Reduction Options on FL

I have a 2009 Street Glide. Wanted to change the stock overall gear ratio which is my understanding @ 2.89. My understanding to do this is I have two options:

Change the primary trans gear sprocket down from 32 to 30T

Or

Change the front belt drive pullet from 32 to 30T


My questions are:
  • What are the pros or cons of each option?
  • Would I get the same result doing either option?
Reply With Quote
  #2  
Old 04-09-2011, 11:47 AM
jejean jejean is offline
Hang Around
Garage is empty, add now
Join Date: Apr 2011
Location: tucson, az
Posts: 1
Default

Called Baker trans & talk to Mark. looking for same on 2010.. watch out for drive pulley, changes speedometer??
Reply With Quote
  #3  
Old 04-09-2011, 01:34 PM
qtrracer qtrracer is offline
Outstanding HDF Member
1900 bye bye
Join Date: Jan 2008
Location: the moon
Posts: 3,496
Default

Quote:
Originally Posted by jlturner View Post
I have a 2009 Street Glide. Wanted to change the stock overall gear ratio which is my understanding @ 2.89. My understanding to do this is I have two options:

Change the primary trans gear sprocket down from 32 to 30T

Or

Change the front belt drive pullet from 32 to 30T


My questions are:
  • What are the pros or cons of each option?
  • Would I get the same result doing either option?
Your options are: Change engine primary sprocket from 34 to a 30 sprocket(losing the compensator in the swap), change clutch primary sprocket from 46 to 49, change trans pulley from a 32 to a 31 or a 30 OR spend over 3 grand utilizing a Baker DD7 gearset.
Reply With Quote
  #4  
Old 04-12-2011, 07:33 AM
grbrown's Avatar
grbrown grbrown is offline
Club Member
2007 Buttercup XB12R
Join Date: Jun 2007
Location: Bedford UK
Posts: 15,521
Default

My reading of this is there is a further option, of fitting a 68T rear pulley. Personally I would leave the primary gearing alone, as changing the clutch sprocket is a silly price and ditching the compensator doesn't seem wise!

If you go to 30/68 belt drive your overall will change to 3.07:1 and top gear will change from approx 27mph/1,000rpm to 24.5mph/1,000rpm. From what I can make out the stock belt will still fit when changing both pulleys.

There is more on this over in the Touring forum. Just search that forum for '68T'.
__________________
Graham 5Ps, #1 Gent!
Harley owner since 1974, Founder & Life HOG Member.
1990 Officially 'Hyacinth' Blue FLHS/2008 S&S V107T, 2007 Buttercup XB12R, 2011 Merlot XL883L, MG ZT V8 281cid.
Reply With Quote
  #5  
Old 04-12-2011, 09:37 AM
qtrracer qtrracer is offline
Outstanding HDF Member
1900 bye bye
Join Date: Jan 2008
Location: the moon
Posts: 3,496
Default

Quote:
Originally Posted by grbrown View Post
My reading of this is there is a further option, of fitting a 68T rear pulley. Personally I would leave the primary gearing alone, as changing the clutch sprocket is a silly price and ditching the compensator doesn't seem wise!

If you go to 30/68 belt drive your overall will change to 3.07:1 and top gear will change from approx 27mph/1,000rpm to 24.5mph/1,000rpm. From what I can make out the stock belt will still fit when changing both pulleys.

There is more on this over in the Touring forum. Just search that forum for '68T'.
He already has the rear 68T pulley from the factory, it's an 09. And he can swap to a chain final drive keeping the IDS, good choice for those who have had belt breakage issues.

Last edited by qtrracer; 04-12-2011 at 09:40 AM.
Reply With Quote
  #6  
Old 04-12-2011, 10:06 AM
grbrown's Avatar
grbrown grbrown is offline
Club Member
2007 Buttercup XB12R
Join Date: Jun 2007
Location: Bedford UK
Posts: 15,521
Red face

Quote:
Originally Posted by qtrracer View Post
He already has the rear 68T pulley from the factory, it's an 09. And he can swap to a chain final drive keeping the IDS, good choice for those who have had belt breakage issues.
Oops! Should have checked my facts!
__________________
Graham 5Ps, #1 Gent!
Harley owner since 1974, Founder & Life HOG Member.
1990 Officially 'Hyacinth' Blue FLHS/2008 S&S V107T, 2007 Buttercup XB12R, 2011 Merlot XL883L, MG ZT V8 281cid.
Reply With Quote
  #7  
Old 04-14-2011, 10:13 AM
lkr0 lkr0 is offline
Outstanding HDF Member
Garage is empty, add now
Join Date: Nov 2006
Location: Stockbridge, GA (Atlanta)
Posts: 3,352
Send a message via Yahoo to lkr0
Default

I have been looking for a chain drive my 09 -- some say an 08 chain conversion will work; does anyone know of any other options?
Quote:
Originally Posted by qtrracer View Post
He already has the rear 68T pulley from the factory, it's an 09. And he can swap to a chain final drive keeping the IDS, good choice for those who have had belt breakage issues.
__________________
Lyn in ATL
09 Road Glide HQ 107
06 SG S&S 124
Reply With Quote
Old 04-14-2011, 10:13 AM
 
 
 
P
Reply

Tags
06, 2009n, bike, change, clutch, davidson, flhx, gear, glide, harley, primary, ratio, reduction, street, touring


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off
Forum Jump

Advertising
Featured Sponsors
Vendor Directory
Sponsors
All times are GMT -5. The time now is 04:01 AM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.5.2

Admin, Emails & Contact Details