Baker 30/31 tooth transmission pully
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Tourer
Joined: Nov 2006
Posts: 354
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From: Los Angeles
Baker 30/31 tooth transmission pully
Any one tried switching thetransmision pully from stock 32 tooth to a 31 or 30 tooth on a cruisedrive 6spd? Just wondering how it worked out. I rarley use 6th gear, too tall for the type of riding I usualy do and it seems like a cheap/easy way to get more acceleration out of a stock 96" motor.
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Joined: Dec 2006
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From: Po-Dunk Looziana
RE: Baker 30/31 tooth transmission pully
Here is an exerpt from (V)twin forums about the product:
Get more oomph from a throttle-wick on your 2007 stock Harley-Davidson. 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 (H-D p/n 40056-07) 2 ¼” special Pulley nut socket required for replacement available from Baker Drivetrain. p/n 94660-07BD
Get more oomph from a throttle-wick on your 2007 stock Harley-Davidson. 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 (H-D p/n 40056-07) 2 ¼” special Pulley nut socket required for replacement available from Baker Drivetrain. p/n 94660-07BD
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Tourer
Joined: Nov 2006
Posts: 354
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From: Los Angeles
RE: Baker 30/31 tooth transmission pully
ORIGINAL: cjuetten
Wouldn't changing the pulleythrow off your speedometer. Do they sell a calibration box (?) to go with it?
Wouldn't changing the pulleythrow off your speedometer. Do they sell a calibration box (?) to go with it?
Tourer
Joined: May 2007
Posts: 484
Likes: 2
From: Alabama
RE: Baker 30/31 tooth transmission pully
Oh yes, changing eitherpulley on the beltwould throw off the speedometer.
Changingchain gears inside theprimary would not!!! This would be true for all new models
thatread the speedometerfrom transmission.Since they quit using the front wheel cable years ago!
Changingchain gears inside theprimary would not!!! This would be true for all new models
thatread the speedometerfrom transmission.Since they quit using the front wheel cable years ago!
Intermediate
Joined: Feb 2006
Posts: 43
Likes: 0
RE: Baker 30/31 tooth transmission pully
07 bikes have 34 tooth trans pully, a change to 30 or 31 reduce the overall gearing by 13% or 11% respectively. With the 30 tooth pulley you will be at about 3.15 total gearing which is exactly the number of the old 5 speed. Too much shifting involved cause you spread it over six gears instead of five. 32 pulley is a good alternative total gearing around 3.00, which AFAIK is not yet on the market. You need a shorter belt and a speedo adjuster for any of those changes
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Tourer
Joined: Nov 2006
Posts: 354
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From: Los Angeles
RE: Baker 30/31 tooth transmission pully
ORIGINAL: Bellamacchina
07 bikes have 34 tooth trans pully, a change to 30 or 31 reduce the overall gearing by 13% or 11% respectively. With the 30 tooth pulley you will be at about 3.15 total gearing which is exactly the number of the old 5 speed. Too much shifting involved cause you spread it over six gears instead of five. 32 pulley is a good alternative total gearing around 3.00, which AFAIK is not yet on the market. You need a shorter belt and a speedo adjuster for any of those changes
07 bikes have 34 tooth trans pully, a change to 30 or 31 reduce the overall gearing by 13% or 11% respectively. With the 30 tooth pulley you will be at about 3.15 total gearing which is exactly the number of the old 5 speed. Too much shifting involved cause you spread it over six gears instead of five. 32 pulley is a good alternative total gearing around 3.00, which AFAIK is not yet on the market. You need a shorter belt and a speedo adjuster for any of those changes
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Tourer
Joined: Nov 2006
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From: Los Angeles
RE: Baker 30/31 tooth transmission pully
ORIGINAL: rare100thHD
Oh yes, changing eitherpulley on the beltwould throw off the speedometer.
Changingchain gears inside theprimary would not!!! This would be true for all new models
thatread the speedometerfrom transmission.Since they quit using the front wheel cable years ago!
Oh yes, changing eitherpulley on the beltwould throw off the speedometer.
Changingchain gears inside theprimary would not!!! This would be true for all new models
thatread the speedometerfrom transmission.Since they quit using the front wheel cable years ago!
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Intermediate
Joined: Mar 2007
Posts: 27
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From:
RE: Baker 30/31 tooth transmission pully
The 2007 primary ratio is 1.35
the 31 tooth transwould give you a secondary ratio of 2.12
2.12 x 1.35 gives you a 2.82 final ratio
the 30 tooth trans would give you a secondary ratio of 2.2
2.2 x 1.35 gives you a final ratio of 2.97
the 31 tooth transwould give you a secondary ratio of 2.12
2.12 x 1.35 gives you a 2.82 final ratio
the 30 tooth trans would give you a secondary ratio of 2.2
2.2 x 1.35 gives you a final ratio of 2.97
Intermediate
Joined: Mar 2007
Posts: 27
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From:
RE: Baker 30/31 tooth transmission pully
I wish some one would make a 32 tooth compensating sprocket it would change the primary ratio back to 1.44 where it was on the 05 on down bikeswith the stock secondary ratio of 2.06 you would get a final ratio of 2.97.
It would be a lot less labor you would not have to pull the inner primary and you also would not have to pull the swing arm to change the belt
I sent an e-mail to Baker asking this but have not heard back
It would be a lot less labor you would not have to pull the inner primary and you also would not have to pull the swing arm to change the belt
I sent an e-mail to Baker asking this but have not heard back