Baker DD7

DETAILS are emerging of a revolutionary new transmission which was being tested by Baker Drivetrain during Daytona Bike Week. The new gearset, named the DD7, is a seven-speed direct replacement for the factory Cruise Drive six-speed.

The new transmission has been developed to overcome a number of issues with the stock six-speed system. The DD7 has a shorter 1st gear for easier launches compared to the tall factory 1st gear.

The ’shift clunk’ of the stock gearbox is claimed to be eliminated due to the use of a lightweight mainshaft in the DD7, which includes only the small 1st gear as an integral part. The stock H-D mainshaft is a one-piece design that includes 1st, 2nd, 3rd, and 4th gears, making it extremely heavy, thus causing the shift clunk.

Baker further claims that the shifting of the new transmission is smoother than the factory six-speed through the incorporation of a linear roller ball detent as part of the supplied billet top cover. It is similar to the type first used on Baker’s TorqueBox transmissions.

Unlike the part it replaces, which has straight cut 1st and 5th gears, the DD7 has a full set of helical gears for quiet operation in every gear.

The DD7 Builder’s kits will come ready to slide in the bike, with no case modifications, shimming of the gearset or adjustments required. The 7th main drive gear is included in Builder’s kit, to replace 6th main and re-uses the stock shifter pawl. The kit will be available for 2006-2008 Dyna and 2007-2008 Softails and FLs.

BAKER DRIVETRAIN
Haslett, Michigan, USA
Tel: 517 339 3835
Fax: 517 339 4590
E-mail: info@bakerdrivetrain.com

www.bakerdrivetrain.com

This entry was posted on 17/03/2008 at 12:10 pm and is filed under Driveline. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response or trackback from your own site.

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