• Fits into existing 5-speed cases; lower the rpm at cruising speeds
• Includes a 6-speed gear set (2.94:1 1st gear/.86:1 6th gear), 28-tooth motor sprocket, longer primary chain, fixed spindle-shift drum and anti-overshift ratchet shift pawl assembly
• All gears are full-width Baker ground gears; 4th, 5th and 6th gears are helical for silent operation
• Includes easy-to-follow instructions
• Replacement primary shoe available separately; designed for use with tensioner bracket OEM #39990-01
• Made in the U.S.A.

DD6 Features And Advantages
Polished Trap Door With Engraved Dd6 Logo
Anti-Overshift Ratchet Pawl
28-Tooth Compensating Sprocket Yelds 14% More Starter System Torque
Longer Primary Chain Included.
Fixed Spindle Shift Drum For Smooth, Low Inertia, Drum Indexing
Full Width Baker Baker Ground Gears

Top Gear Rpm : 5-Speed Vs. Dd6
Mph------5-Speed Rpm In 5Th---------------------- DD6 Rpm In 6Th
65 -------2945-----------------------------------------------------2528
70------- 3172----------------------------------------------------- 2723
75 -------3398----------------------------------------------------- 2917
80 ------ 3625----------------------------------------------------- 3112

Calculated Data Based On A 24/37 Primary, A 32/70 Secondary, And A 25” Rear Tire