Baker sevem-speed trans
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From: DUNDALK,MARYLAND
RE: Baker sevem-speed trans
DD7: Direct drive 7-speed transmission
The BAKER DD7 is scheduled to be available august 1, 2008 so reserve yours now!
The Baker DD7, Direct Drive 7-Speed is being developed as a direct replacement of the Cruise Drive Harley-Davidson factory 6-speed to improve it in many ways besides just adding another gear.
Stay in the best power range: Many complain that the factory 1st gear is too tall and these bikes feel bogged-down at the stoplight. The DD7 has a shorter 1st gear for improved get-up-and-go.
Because of the shorter first gear and following gear ratios, testers report that the bike feels like motor work has been done. The shift quality is unheard of as well.
The Harley-Davidson factory 6-speed ratios are: 1st (3.34), 2nd (2.30), 3rd (1.71), 4th (1.41), 5th (1.18), 6th (1.00).
The Baker DD7 transmission will have the following ratios: 1st (3.76), 2nd (2.75), 3rd (2.06), 4th (1.55), 5th (1.27), 6th (1.10), 7th (1.00).
The BAKER DD7 is scheduled to be available august 1, 2008 so reserve yours now!
The Baker DD7, Direct Drive 7-Speed is being developed as a direct replacement of the Cruise Drive Harley-Davidson factory 6-speed to improve it in many ways besides just adding another gear.
Stay in the best power range: Many complain that the factory 1st gear is too tall and these bikes feel bogged-down at the stoplight. The DD7 has a shorter 1st gear for improved get-up-and-go.
Because of the shorter first gear and following gear ratios, testers report that the bike feels like motor work has been done. The shift quality is unheard of as well.
The Harley-Davidson factory 6-speed ratios are: 1st (3.34), 2nd (2.30), 3rd (1.71), 4th (1.41), 5th (1.18), 6th (1.00).
The Baker DD7 transmission will have the following ratios: 1st (3.76), 2nd (2.75), 3rd (2.06), 4th (1.55), 5th (1.27), 6th (1.10), 7th (1.00).
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Joined: Sep 2007
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From: Nomad
RE: Baker sevem-speed trans
Not too much shifting.
The idea is like with road bikes (bicycles). They have 20-30 gears. Do you think cyclists really shift through all 20? There is a lot of overlap: the idea is to find the one that has a range to best suit current cadence (= to RPM), terrain, and speed.
According to what Baker says, that is generally their goal in this tranny: to give you more options to find your "sweet spot" for your terrain, desired cruising RPMs, and speed. It's not to give you a higher gear (notice that 7th in the DD7 is the same ratio as the HD 6th.) Given the narrow power band of an air-cooled V-Twin, this is not a bad idea.
For those who do a lot of two-lane country road cruising, this may be an interesting option, but it won't change anything on the slab. You may even find yourself dropping two gears to find some serious get-up-n-go for passing. And assuming this will cost $2,200-2,500 (+ labor) it is an expensive "upgrade." Many cheaper ways to shorten 1st gear without affecting the high-end too much.
The idea is like with road bikes (bicycles). They have 20-30 gears. Do you think cyclists really shift through all 20? There is a lot of overlap: the idea is to find the one that has a range to best suit current cadence (= to RPM), terrain, and speed.
According to what Baker says, that is generally their goal in this tranny: to give you more options to find your "sweet spot" for your terrain, desired cruising RPMs, and speed. It's not to give you a higher gear (notice that 7th in the DD7 is the same ratio as the HD 6th.) Given the narrow power band of an air-cooled V-Twin, this is not a bad idea.
For those who do a lot of two-lane country road cruising, this may be an interesting option, but it won't change anything on the slab. You may even find yourself dropping two gears to find some serious get-up-n-go for passing. And assuming this will cost $2,200-2,500 (+ labor) it is an expensive "upgrade." Many cheaper ways to shorten 1st gear without affecting the high-end too much.
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