We also have individual replacement Harley gears for rebuilds and repairs. For those want better acceleration or more top-end speed, Harley gear sets such as the Baker Drivetrain 6-Speed Gear Set will fit right in an existing 5-speed case to completely revamp your RPM band. These transmission shafts are machine-ground and heat-treated to shift faster and run longer than factory stock. We have Harley mainshafts, countershafts and kick-start shafts for 5-speed Shovelheads, 4-speed Sportsters, 4-speed Big Twins and more. Whatever ails your Harley transmission, we’ll help you get it running better than ever. We have everything from primary covers to gaskets at low prices to increase power, acceleration and torque for the speed fiend inside. If you’re looking for more out of your motorcycle or want to start over, you can find a huge selection of quality Harley transmission parts here at Dennis Kirk. Harley owners know as much as anyone how vital a good transmission is getting power to the wheels – and how much of a pain it can be when it underperforms or fails. Next stop, Bennett’s Performance.The transmission is one of the most important, and most notorious, parts in any motorized vehicle.
BAKER HARLEY TRANSMISSION INSTALL
Since our motor was still sitting on the bench, we needed to install it to the frame in conjunction with placement of the new transmission, and then the two could be coupled to the primary prior to alignment of the entire drivetrain-an important step.ĭepending on what stage of completion your bike is in, it may be necessary to complete all of the following steps, or possibly only some of them. Baker also makes a builder’s kit consisting of all the same components with the exception of a new transmission case, saving the bike owner roughly $700. The unit we are installing is designed for an Evo Softail and has a wrinkle-black finish (MSRP: $3,195). The transmissions are available in multiple finishes, including raw, polished, chrome, and wrinkle black. Baker makes the DD6 in styles to fit Softails, FLTs, FLHs, and Dynas, as well as customs. The DD6 is designed to fit perfectly in place of the stock H-D transmission (both Twin Cams and Evos), and its interface to the inner primary is identical to a stock transmission. Simply put, Baker over-drove the primary instead of the transmission. He did this by replacing the stock compensator sprocket with a new, larger 28-tooth sprocket, and this, coupled with a new primary chain and redesigned chain tensioner, gave the new DD6 the same ratios as the older OD6 while giving it greater efficiency. In order to restore this benefit, Bert decided to change the ratio of the stock primary drive. By going with a 1:1 Sixth gear, the benefits of reducing rpm while at highway speeds were lost. Although this concept makes lots of sense on paper, there was still one hurdle Baker needed to overcome. That, coupled with the design of the helical-cut Fourth, Fifth, and Sixth gears, results in much smoother and quieter meshing of the gears, making for an even more pleasant riding experience. By doing so, there is less horsepower lost in the transmission, resulting in higher efficiencies in the 99-percent range. While 92-percent efficiency was standard for this type of application, Bert knew he could come up with a better way to put more power to the pavement, and that’s exactly what he did with the DD6.īy redesigning the internals of the transmission, Bert was able to effectively remove a pair of gears from the operation of both Fifth and Sixth gears. The only downside to this was that, based on the transmission’s design, the Sixth gear was only about 92-percent efficient. 86:1 (a 14-percent reduction) ratio while still maintaining the same stock gear ratios (1-5) as the Harley transmissions. The OD6 was designed to give riders an additional Sixth gear with an. Just as the original OD6 was revolutionary in the ’90s, the DD6 is even more so today. Baker’s DD6 (Direct Drive six-speed) is a result of Bert’s constant search for improvement.
BAKER HARLEY TRANSMISSION HOW TO
If he’s not tinkering with a new project, he’s figuring out how to make an existing one better. Over the years this transmission became standard fare on many custom bikes, not to mention thousands of Harleys whose owners tossed their stock gears in order to get the benefits of running an overdrive gear, which afforded them a smoother, quieter ride while dropping the rpm of the motor.Īnyone who knows Bert knows he just can’t stand still. Bert’s hard work paid off in the form of Baker’s revolutionary six-speed overdrive transmission (OD6).
BAKER HARLEY TRANSMISSION MANUAL
Taking what he had learned as a senior project engineer at General Motors overseeing manual transmissions, Bert Baker applied this knowledge to his personal bike to make it run more smoothly. Ever since Baker Drivetrain hit the scene a decade ago, the company has been making waves in the Harley market-not just waves, but monster waves.