Baker Drivetrain 7 Speed Transmission Gear Set '06-16 Harley Davidson Big Twin (Click for fitment)

SKU: DD7-37601
$2,995.95 $2,695.95
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Baker Drivetrain 7 Speed Transmission Gear Set '06-16 Harley Davidson Big Twin (Click for fitment)

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Baker Drivetrain 7 Speed Transmission Gear Set '06-16 Harley Davidson Touring Models

The DD7 upgrades any existing 2006-later big twin 6 speed to a full 7 speed transmission.  The BAKER DD7 is more than just another gear added to the mix for the sake of one-upmanship. That 7th gear enables the motorcycle to now make full use, by way of gear ratio management, of the torque and power put out by the new 96 CI and 110 CI motors rolling off the assembly line in Milwaukee. We did not make this transmission a deep overdrive, rather we shortened 1st gear and tightened up the gears to deliver the riding experience that you were after when you bought your bike. The gear ratios leave you the rider, with the experience of smooth, crisp, continuously pulling acceleration from 1st all the way through 4th gear. Then you are able to start getting into the cruising portion of the program in gears 5th-7th. No big drops in RPM from one gear to the next or lugging the motorcycle off of a stop light, just smooth, uninhibited acceleration.

Baker did not stop at just fixing the gear ratios. They improved the smoothness and crispness of the shifting by reducing the mainshaft mass by only having 1st gear be a part of the shaft, rather than 1st-4th gears like on the stock unit. Reduction in rotating mass for shift quality is a fact that has been utilized in the automotive world for years. They ditched the stock detent arm and spring assembly from the door in favor of a Linear Detent that decreased friction while increasing smoothness when coupled with the all new shift drum design. They have tightened up the dog teeth on the gears to prevent the loud clacking noise that accompanies every shift on the factory 6 speed. Through the use of a billet bearing door, 28% wider bearings in the door, steel bearing retainer plates and full width gears, the durability and strength of our unit is a drastic improvement. By utilizing fully diamond ground, helical gears in 1st & 4th-7th they are able to deliver a much quieter riding experience. While 2nd and 3rd gears are diamond ground, spur gears to handle the peak torque that is reached in that range.

  • Direct replacement of the Cruise Drive Harley-Davidson factory 6-speed
  • The 7th gear enables the motorcycle to make full use, by way of gear ratio management, of the torque and power put out by the 96 ci, 103 ci and 110 ci motors
  • Unlike the stock mainshaft which includes 1st through 4th gears, the DD7 is lightweight and only includes the small 1st gear, minimizing the shift clunk
  • Features a shortened 1st gear and tightened all other gears for a smooth and powerful riding experience with continuous acceleration from 1st to 4th gear
  • Shift smoothness is achieved by use of a new linear roller ball detent which is part of the supplied billet top cover
  • Comes ready to slide in the bike, no case modifications, shimming of the gear set or adjustments required
  • 7th main drive gear, main drive gear bearing, main drive seal are all included to replace 6th main
  • ARP 12pt bolts for door, top cover, stock side cover, Baker re-cal box and leads all included
  • Reuses stock shifter pawl
  • Includes new main drive gear bearing and seal, door gasket, side cover gasket, top cover gasket and self-adhesive DD7 side cover emblem
  • Utilizes F6F door bearing retainer plate
  • DD7 door bearings are 28% wider than stock
  • Made in the U.S.A.
First Gear Ratio 3,76:1
Second Gear Ratio 2,75:1
Third Gear Ratio 2,06:1
Fourth Gear Ratio 1,41:1,1.55:1
Fifth Gear Ratio 1,18:1,1.27:1
Sixth Gear Ratio 1,00:1,1.10:1
Seventh Gear Ratio 1,00:1

 

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2007 - 2009 Harley-Davidson Electra Glide Standard EFI FLHTI
2007 - 2016 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI
2015 - 2016 Harley-Davidson Electra Glide Ultra Classic Low FLHTCUL
2010 - 2016 Harley-Davidson Electra Glide Ultra Limited FLHTK
2015 - 2016 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL
2008 - 2016 Harley-Davidson Fat Bob FXDF
2010 - 2016 Harley-Davidson Fat Boy Lo FLSTFB
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2014 - 2016 Harley-Davidson Low Rider EFI FXDL
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2010 - 2013 Harley-Davidson Road Glide Custom FLTRX
2015 - 2016 Harley-Davidson Road Glide Custom FLTRX
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2007 - 2016 Harley-Davidson Softail Deluxe EFI FLSTNI
2007 Harley-Davidson Softail Deuce EFI FXSTDI
2007 - 2016 Harley-Davidson Softail Fat Boy EFI FLSTFI
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2008 - 2009 Harley-Davidson Softail Rocker FXCW
2012 - 2016 Harley-Davidson Softail Slim FLS
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2007 Harley-Davidson Softail Standard EFI FXSTI
2006 - 2016 Harley-Davidson Street Bob FXDB
2007 - 2016 Harley-Davidson Street Glide EFI FLHX
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2006 - 2014 Harley-Davidson Super Glide Custom EFI FXDCI
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2006 Harley-Davidson Super Glide FXD35
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