DD6RV-Direct Drive 6-Speed Reverse



The DD6-RV upgrades any existing 1990-2006 big twin 5 speed to a Direct Drive 6 Speed with Reverse.  The contents in the DD6-RV kit are similar to the F6R; door, side cover, countershaft, reverse gear train and hardware. Existing gearset (except countershaft), shift system and top cover will be re-used with the DD6-RV installation. The DD6-RV will be appreciated by those with heavy GVW applications (trikes, side cars and trailers) or those with compromised leg mobility. Also available as a 6 Speed Builder’s Kit with reverse, or as a complete transmission upgrade. No longer do you have to wrestle that large bagger out of a tight parking situation. You can safely and easily back up in reverse using the throttle and clutch. All reverse functions are on the handlebars and/or inner fairing. No reaching down near the hot exhaust to actuate reverse. By design it is mechanically impossible to be in reverse and a forward gear like other units on the market. Maintain the freedom of being powered by an American Big Twin – even in reverse!


– Will retrofit with all BAKER LSD DD6 transmissions.

– Full complement of parts and detailed instructions included for an easy installation.

– Reverse is designed as a creeper gear for the safest operation possible.

– Reverse selection controlled by aircraft grade shifting solenoid & crank assembly. Electronic reverse safety lock out solenoid is energized with the handlebar mounted momentary toggle switch.

– No ‘accidentally’ shifting into reverse. Solenoids are only powered when the bike is in neutral and automatically turn ‘off’ when bike is shifted out of neutral.

– Redundant dual spring system on the shifting bell crank assembly make it is the safest reverse system on the market today.

– True ‘plug & play’ wiring harness. No using the starter motor for reverse maneuvers either.

– No case modifications required for reverse gearset installation.

– Backed by a 2 year limited warranty.

DD6-RV Kit Contents



– 5.93:1 ratio reverse gear in the DD6-RV gearset, which is 45% shorter than the standard DD6 1st gear ( 3.24:1). Making it essentially a creeper gear.- Reverse gears and dogs made of 8620 gear steel, fully case hardened to 58-62 Rockwell C. Ground tooth profiles with diamond coating tooling

– Billet (6061-T6) Aluminum bearing door and side covers. Available in polished or chrome finishes.

– Pre heat treated 4140 billet steel shift fork (28-32 Rockwell C) rides on a case hardened, ground finish fork rod.

– Hydraulic side cover (1.5″ Piston) works with stock and aftermarket 11/16″ bore hydraulic clutch lever assemblies.

– All included bolts are polished stainless steel.

– Clears the stock FLT/ FLH cast oil spout.

– Will retrofit with previously installed BAKER DD6 transmissions.

– DD6 countershaft disassembly for reverse kit install requires a split bearing puller. BAKER makes a tool designed just for this job, pn 483-DD6RVT, pictured below under recommended upgrades.

– Typical install time is 6-9 hours depending on the model of motorcycle, exhaust and installed accessories.

– Sticks out from bearing door the same amount as a stock mechanical (cable style) transmission side cover.

– Due to the solenoid location on the side cover, the DD6-RV may not work with some 2-into-1 exhaust systems where the rear head pipe goes down in front of the transmission. Clears all stock exhaust systems will a small amount of clearancing to the lower door mount exhaust bracket required on stock FLT/ FLH systems.

DD6-RV Geartrain Layout

DD6-RV, Safety Solenoid ‘On’, Reverse Shift Ready

DD6-RV Safety Solenoid ‘Off’, Reverse Locked Out

DD6-RV Bell Crank, At Rest

DD6-RV Bell Crank, Reverse Locked Out

DD6-RV Bell Crank, Reverse Engaged

Reverse Kits

PN Description Fitment
DD6-RVP* Bolt On Reverse Kit, Polished All LSD BAKER DD6’s
DD6-RVC* Bolt On Reverse Kit, Chrome All LSD BAKER DD6’s


NOTE:All above PN’s come standard with a cable type side cover, unless ordered otherwise

Add: -U Suffix For Upgrade To A BAKER DD6 Builder’s Kit Or Complete Build

Add: -H Suffix For Hydraulic Side Cover Version

Add: -HI Suffix For 2007-2013 Indian Hydraulic Side Cover Version

*2000-2006 Softail Models Require BAKER PN TCSO-A, Oil Line Adapter Kit

DD6-RV Cable Type Side Cover

DD6-RV Hydraulic Side Cover

TC88B Softail Oil Line Adapter Kit

Switch Housings

PN Description Fitment
SHB-A Hand Control Mounted, Satin Black H-D™ Factory Hand Controls
SHC-A Hand Control Mounted, Chrome H-D™ Factory Hand Controls
423-F5R 1″ Handlebar Mounted, Polished 1″ Handle Bars
FRNG-MNT** Switches with Rubber Boots FLT/ FLH Inner Fairing, Custom Location

**pn FRNG-MNT comes standard with all kits unless ordered otherwise.

pn SHB-A, Switch Housing Installed

pn SHC-A, Switch Housing Installed

pn 423-F5R, Switch Housing Installed

pn FRNG-MNT, Inner Faring Mounted

Recommended Upgrades

– Bully Derby Cover (1999-2006 5 Hole Derby Cover Models)

– Function Formed FLT/ FLH Oil Spout

– +1 Quart Oil Pan

– Inner Primary High Torque Bearing Kit

– DD6-RV Countershaft Press Tool

– SP9: Street Performance 9 Plate Clutch

– King Kong Clutch


Click on any of the images below to learn more

Bully Derby Cover

FLH/ FLT Function Formed Oil Spout

+1 Quart Oil Pan

High Torque Bearing Kit

DD6-RV Countershaft Press Tool

SP9- Street Performance 9 Plate Clutch

King Kong Clutch

Spectro Oil BD-75140

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 DD6-RV Fluid Capacity Dry: 22-24fl-oz

BAKER DD6-RV Fluid Capacity Wet: 18-22fl-oz


Installation Instructions

BAKER DD6-RV Installation Instructions with Exploded Views : Click Here



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BAKER DRIVETRAIN| 9804 E. SAGINAW, HASLETT, MI, 48840 |1-877-640-2004| 517-339-3835 | FAX: 517-339-4590 @2012 BAKER INC