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Parts and Accessories

BAKER Drivetrain DD6 Builder’s Kit for Harley-Davidson

BAKER Drivetrain’s Direct Drive 6-speed (DD6), combines three technical approaches to achieve the most advanced transmission gearset design available for a big twin with minimal compromise.

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The DD6, or Direct Drive 6-speed, combines three technical approaches to achieve the most advanced transmission gearset design available for a big twin with minimal compromise. First, 1st through 3rd gears are straight cut (spur) for strength during maximum acceleration with no parasitic axial thrust.

Secondly, 4th and 5th gears are automotive style helical gears for quiet and smooth operation as highway speed approaches. Lastly, 6th gear is direct drive which means there is no underdrive or overdrive in top gear which translates into 99% efficiency for minimum parasitic loss, minimum wear and tear, and maximum fuel efficiency.

The sequential motion of the hard chrome plated forks is controlled by a fixed spindle radial ball bearing mounted shift drum. Hard chrome guarantees long fork life with minimal imposed friction on the fork groove of the gear. The fixed spindle drum design eliminates any chance of binding or imposed friction about the axis of drum rotation.

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Drum rotation is controlled by a roller detent and actuated by a BAKER shift pawl with a anti-overshift feature. To make finding neutral an easy chore, we mounted a redundant detent on the left side pillow block.

MSRP $2495

Links:

BAKER Drivetrain

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