30T drive pulley
Thread Starter
|
Road Captain
Joined: Dec 2009
Posts: 512
Likes: 6
From: Minnesota
30T drive pulley
Have read alot about this but not sure if an 09 Road King has a 31 or 32 tooth pulley stock. If it is 31T I know what to do , if it is a 32T do they sell a 31t? Has anyone here changed it on an 09 or newer?
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
you may find handy the get the doc 28_RatiosMPG-page28.pdf google it.
it's an andrews chart with gearing notes.
when changing gearing, you just need to be sure that if you change the "leverage" that the motor is capable of dealing with the change
my fxr has a 61T rear pulley from the stock 70T- a 15% overdrive.
my motor was built, cammed and tuned for torque the ensure that the low speed operation would be good.
you are looking at an underdrive- great in town and twisties, less so on the interstate
Mike
it's an andrews chart with gearing notes.
when changing gearing, you just need to be sure that if you change the "leverage" that the motor is capable of dealing with the change
my fxr has a 61T rear pulley from the stock 70T- a 15% overdrive.
my motor was built, cammed and tuned for torque the ensure that the low speed operation would be good.
you are looking at an underdrive- great in town and twisties, less so on the interstate
Mike
Last edited by mkguitar; Jan 2, 2012 at 05:14 PM.
Seasoned HDF Member
Joined: Jun 2006
Posts: 28,552
Likes: 3,954
From: Vermont
30-tooth or 31-tooth h-dŽ 2006-up cruise drive™ pulleys
Get more oomph from a throttle-wick on your 2007 stock Harley-Davidson FL. Our 30-Tooth or 31-Tooth transmission pulleys effectively ‘gear down’ the bike to optimize the performance in two major ways.
First, you’ll get more torque and power from the take-off gears. This remedies the common criticism of the new bikes being a little sluggish off the line for some riders.
Second, you can utilize the 6th gear at a slower, more reasonable highway speed for a more comfortable RPM. These pulleys bring the cruising gears down a notch for finessing your ride.
Performance details are as follow:
Increase Rear Wheel Torque (30T- 7% Increase / 31T- 3% Increase)
Cruising RPM 6th gear (75MPH) 30T @ 2830 / 31T @ 2756
No more lugging the motor in 6th gear at lower cruising speeds (60-70 MPH)
Note: Will require the use of a 1 tooth shorter belt (For example: H-D p/n 40056-07 is for FL) 2 ź” special Pulley nut socket required for replacement available from Baker Drivetrain. p/n 94660-07BD
Thread Starter
|
Road Captain
Joined: Dec 2009
Posts: 512
Likes: 6
From: Minnesota
From Baker:
30-tooth or 31-tooth h-dŽ 2006-up cruise drive™ pulleys
Get more oomph from a throttle-wick on your 2007 stock Harley-Davidson FL. Our 30-Tooth or 31-Tooth transmission pulleys effectively ‘gear down’ the bike to optimize the performance in two major ways.
First, you’ll get more torque and power from the take-off gears. This remedies the common criticism of the new bikes being a little sluggish off the line for some riders.
Second, you can utilize the 6th gear at a slower, more reasonable highway speed for a more comfortable RPM. These pulleys bring the cruising gears down a notch for finessing your ride.
Performance details are as follow:
Increase Rear Wheel Torque (30T- 7% Increase / 31T- 3% Increase)
Cruising RPM 6th gear (75MPH) 30T @ 2830 / 31T @ 2756
No more lugging the motor in 6th gear at lower cruising speeds (60-70 MPH)
Note: Will require the use of a 1 tooth shorter belt (For example: H-D p/n 40056-07 is for FL) 2 ź” special Pulley nut socket required for replacement available from Baker Drivetrain. p/n 94660-07BD
30-tooth or 31-tooth h-dŽ 2006-up cruise drive™ pulleys
Get more oomph from a throttle-wick on your 2007 stock Harley-Davidson FL. Our 30-Tooth or 31-Tooth transmission pulleys effectively ‘gear down’ the bike to optimize the performance in two major ways.
First, you’ll get more torque and power from the take-off gears. This remedies the common criticism of the new bikes being a little sluggish off the line for some riders.
Second, you can utilize the 6th gear at a slower, more reasonable highway speed for a more comfortable RPM. These pulleys bring the cruising gears down a notch for finessing your ride.
Performance details are as follow:
Increase Rear Wheel Torque (30T- 7% Increase / 31T- 3% Increase)
Cruising RPM 6th gear (75MPH) 30T @ 2830 / 31T @ 2756
No more lugging the motor in 6th gear at lower cruising speeds (60-70 MPH)
Note: Will require the use of a 1 tooth shorter belt (For example: H-D p/n 40056-07 is for FL) 2 ź” special Pulley nut socket required for replacement available from Baker Drivetrain. p/n 94660-07BD
Thread Starter
|
Road Captain
Joined: Dec 2009
Posts: 512
Likes: 6
From: Minnesota
I think I will go with the 30t , now to find the socket and locking tool at a reasonable price. Anyone here want to sell theirs?
Trending Topics
Tourer
Joined: Jun 2009
Posts: 443
Likes: 2
From: Pittsburgh, PA
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Intermediate
Joined: Jun 2006
Posts: 49
Likes: 0
Yes, this thread is relevant to my interest. My 2011 Limited is lazy, and sixth is too tall even on the interstate. If I could drop down a tooth on the tranny sprocket and not change the belt, that would be a good start. Cams in addition to the stage 1 I already have would be even better.
Road Master
Joined: Jun 2010
Posts: 1,221
Likes: 4
From: Annemasse (border of Geneva-Switzerland) facing Mt-Blanc.
My stock EG is geared 'spot-on' its power range for cruising with a passenger and cargo at 130 Km/h (in Europe). Mountain driving requires a 'tailored' extra 1,000 rpm to eradicate senior metric bikes without damaging the footboards and tailpipes. I don't think there is much to gain by changing only the drive pulley when the behavior of the engine is not adapted to the task.