Baker Drivetrain Softail Synchronous Belt Drive System

softailchromeSoftailblackFrom its experience with transmission pulleys, Baker Drivetrain realized that steel is the material of choice. (Aluminum pulley teeth never hold up with miles, get deformed creating saggy belts). Same with the clutch basket where steel is the choice material to avoid rattle noise created by aluminum deformed flanks as it can be experienced with some competitor products. 

So, The Baker Softail Synchronous Belt Drive uses only stainless steel pulleys with of course the exception of the motor plate and edge guard made of 6061_T6 plate stock and the optional “Dog bone”  bearing support made of 6061-T6 forgings. Belt is 2.4″ and the belt system is provided with an “at-rattle” hardware designed for silent operation when stopped idling with the clutch disengaged. Available in show polish or black anodizing with 0″ or 1/2″ offset configurations. Baker Drivetrain.

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2 Responses to “Baker Drivetrain Softail Synchronous Belt Drive System”


  1. 1 Ben Kudon Jan 4th, 2010 at 11:15 am

    “From its experience with transmission pulleys, Baker Drivetrain realized that stainless steel is the material of choice. (Aluminum pulley teeth never hold up with miles, get deformed creating saggy belts). Same with the clutch basket where steel is the choice material to avoid rattle noise created by aluminum deformed flanks as it can be experienced with some competitor products. ”

    While recognizing that Baker makes a fine transmission, I take exception to two of the claims in this product release and thought it would be a good idea to clarify things. .

    First is the misconception that stainless steel wears better then aluminum. 7075 aluminum is about a dense a material as steel and much stonger then many stainless alloys, however it is about 60% lighter then stainless steel making the drive system much more efficient due to less rotating mass.
    In regards to the “rattle noise”, that noise is typically associated with the clutch plates tapping against the surface of the clutch shell, something that will occur whether you make the basket out of stainless steel or aluminum. The way to limit the noise, is to precicion machine the parts creating less space for movement of the plates while still allowing the plates to easily engage and disengage.

  2. 2 cyclereckr Jan 4th, 2010 at 10:16 pm

    7075 is a very dense alloy , but the wear or abrasion resistance will never be as good as a correctly spec stainless.

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