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Fine Tooth Adjustment Kit

The BAKER primary chain adjuster bracket looks like the stock 39990-01 style bracket but has 28% more adjuster teeth. The finer pitch teeth make it easier to dial in your primary chain slack. Also available is a fat adjuster shoe for special applications that require it.

PN FTA-A (Normal Shoe application)

  • 28% more adjuster teeth


  • Easier to dial in your primary chain slack
  • 1987-2006 Big Twins (except for 2006 Dyna)
  • 2005-2010 Big Dog
  • Thicker adjustment shoe available for special applications


    BAKER Drivetrain reserves the right to change prices, terms or policies at any time without notice. Orders can be pre-paid using Visa, MasterCard, American Express, Discover or PayPal. All orders not pre-paid will be sent C.O.D. certified check or money order only unless pre-approved for company check acceptance. Any orders from outside the USA must be pre-paid in US funds via wire transfer; a $30 transfer fee will apply. Prices shown are F.O.B. Haslett, MI.


    BAKER™ transmission assemblies and transmission builder 's kits, are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 5 years from the date of purchase or up to 50,000 miles, whichever occurs first. All other BAKER products are guaranteed to the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 2 years from the date of purchase or up to 24,000 miles, whichever occurs first, except for the following; Warranty does not cover clutch plate wear, throw out bearing failures or mainshaft breakage due to improper clutch nut installation.Electrical components carry a 30-day warranty; cosmetic finishes (chrome plating, hard anodizing, powder coating) are covered for 60 days. Certain promotional products may carry a shorter warranty as specified at the time of purchase. If the product is found by BAKER to be defective, such products will, at the option of BAKER, be replaced or repaired at cost to BAKER.In the event warranty service is required, the original purchaser must call or write BAKER immediately with a description of the problem. If it is deemed necessary for BAKER to make an evaluation to determine whether the transmission assembly or transmission kit or accessory is defective, the entire transmission assembly, whether originally purchased as an assembly or kit, must be properly packaged and returned prepaid to BAKER with a copy of the original purchase invoice. If after evaluation by BAKER a defect in materials and/or workmanship is found, BAKER will, at their option, repair or replace the defective part of the assembly.


    Returns are permitted within 90 days of the delivery date. Any merchandise returned for any reason (exchange, credit or modification) must be accompanied by a Return Goods Authorization (RGA) number or it will be refused. Call BAKER to obtain this number prior to returning goods for any reason. There is a 15% re-stocking fee for all returned items. BAKER is not liable for any shipping.


    NOTE: Limited warranty does not cover labor or other costs or expenses incidental to the repair and or replacement of BAKER products.This warranty does not apply if one or more of the following situations is judged by BAKER to be relevant: BAKER OEM transmissions ; (these are subject to the OEM manufacturers warranty only), Improper installation , accident, modification (including but not limited to use of unauthorized parts, transmission oils or lubricants), racing, high performance application, mishandling, misapplication, neglect (including but not limited to improper maintenance), or improper repair.BAKER shall not be liable for any consequential or incidental damages arising out of or in connection with a BAKER transmission assembly, transmission kit, component or part. Consequential damages shall include without limitation, loss of use, income or profit, or losses sustained as the result of injury (including death) to any person or loss of or damage to property.BAKER transmissions, transmission kits and accessories are designed exclusively for use in American V-Twin motorcycles. BAKER shall have no warranty or liability obligation if BAKER parts are used in any other application.If it is determined that a BAKER product has been disassembled during the warranty period for any reason, this limited warranty will no longer apply unless you were instructed to do so by a BAKER Drivetrain technician for diagnostic purposes.

    Fine Tooth Adjustment Kit
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    Fine Tooth Adjustment Kit Fine Tooth Adjustment Kit
    Customer Reviews
    4 Based on 2 Reviews
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    • adjuster
    • primary
    • chain
    • noise
    • Hayden
    • response
    • starter gear
    • back
    • teeth
    • chain adjuster
    Paul F.
    United States United States
    Worked well after modifing it.

    Purchased this for my 1995 Softail Custom highly modified motor with 10.5 to 1 compression. The Hayden primary chain adjuster I had was fine till I made changes to the motor. When cranking the motor with a high torque Terry starter the primary chain would tighten and loosen making an awful sound like teeth missing on the starter gear. During cranking the tension on the primary chain is on the bottom compared to on the top when the motor is running. The spring on the Hayden cannot handle the high torque starter and high compression motor. The spring would bottom out then release as the motor cranked thru compression and exhaust. I replaced the Hayden automatic spring tensioner with the Baker Fine Tooth adjuster. During installation I found the back of the shoe hitting the ribs on the inner primary before the captative nut would tighten and lock the adjusting serrations. The entire primary is stock including the inner and outer primary. I had to belt sand about a 1/4" off the back of both sides of the shoe to get it to fit properly. Other then that it works fine, noise during cranking is gone. I called baker and left a message with Tech Service and followed up with an email and never got a response.

    Paul Fenchel verified customer review of Fine Tooth Adjustment KitPaul Fenchel verified customer review of Fine Tooth Adjustment KitPaul Fenchel verified customer review of Fine Tooth Adjustment Kit
    Dave M.
    United States
    very disappointed

    Mark is fantastic, your product is the best. Prepaying for a back order compensator is unacceptable. Thank you Dave Moskos South Side Motorcycle

    Web Product ID: 7475270979
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