direct gear DD5: Direct Drive 5-Speed Builder's Kit – BAKER Drivetrain

Bearing Door
All DD5 bearing doors have the same outer profile as a stock 5-speed, so exhaust brackets, torque arms, etc. fit like stock. The DD5 door comes with or without an ear. The ear door is for exhaust bracket mounting and the non-ear door fits 1993-2006 FL applications. Note the images below. The DD5 door bearings are larger providing 25% more dynamic load capacity than stock bearings used through 1998.

Shift System
Our 5 Speed shift system with roller detent guarantees smooth shifts every time and our redundant neutral ensures that finding neutral is an easy chore. We mount a plunger detent on the left side pillow block and cut a plunger track into the shift drum itself.  The plunger follows this track during operation (shifting) and when shifting into neutral pops into a pocket. This system lets you feel that you’re shifting into neutral. No more guessing.  Shift drum features more aggressive timing on the fork groove profiles and is case hardened to 58 Rockwell for wear resistance and crisp shifts. We built our reputation on smooth-shifting 6-speed transmissions; our 5-speed drum designs benefit from the engineering lessons learned. 

FL Case Differentiations
To see an illustrated example of the differences between FL cases by year, please open the PDF here.

Gearset
All gears are made out of 8620 steel, hobbed before heat treat, and then precision ground with diamond coated tooling after heat treat (58-62 Rockwell ‘C’). These extra steps ensure a quiet gear pair with minimal backlash.

Ratios

The DD5 comes with a 3.24 or 2.94 1st gear ratio.

Shift Forks
Our billet shift forks are 3x thicker than stock and hard chrome plated for wear resistance

 Available No Cost Options

• Standard Shift Drum (1-N-2-3-4-5)
• N1 Shift Drum (N-1-2-3-4-5)
• Reverse Pattern Shift Drum (5-4-3-2-N-1)
• Reverse Pattern Shift Kill Drum (5-4-3-2-N-1); Wiring your neutral switch to the coil provides a clutch free way of shifting your motorcycle.

 The DD5 Ratios

Special Note

• Speedo recalibration unit is required for electric speed sensor applications; PN 95E-56B.

Recommended Fluid / Level 

Picking the right transmission fluid ensures the life and durability of your transmission, that’s why BAKER recommends a fully synthetic GL-5 rated gear weight oil of 75W-140. If a GL-5 rated gear lube is not available, these commonly carried viscosities (weights) will work 75W-90, 75W-140, and 85W-140. BAKER does not recommend the use of Syn3 (20W-50). For Bert’s  article on ‘Oil & Spiders’  Click Here

• BAKER DD5 Fluid Capacity Dry: 22-24fl-oz
• BAKER DD5 Fluid Capacity Wet: 18-22fl-oz

Learn more about Spectro Performance Oils here: https://spectro-oils.com

Instructions

Please see your Factory Service Manual for installing the BAKER DD5 Builder’s Kit