Share to FB

Spectro Gear Lube

Picking the right transmission fluid ensures the life and durability of your transmission, that’s why BAKER recommends a fully synthetic GL-5 rated gear weight oil of 75W-140. The Spectro Heavy Duty Platinum Transmission Oil is fully synthetic GL-5 rated and is formulated to significantly reduce gear noise and helps the transmission shift smoothly even when it’s cold

  • 32fl-oz Bottle - All BAKER transmissions and stock transmissions
  • DD6 Fluid Capacity Dry: 22-24fl-oz
  • DD6 Fluid Capacity Wet: 18-22fl-oz
  • OD6 Fluid Capacity Dry: 22-24fl-oz
  • OD6 Fluid Capacity Wet: 18-22fl-oz
  • F5R Fluid Capacity Dry: 22-24fl-oz
  • F5R Fluid Capacity Wet: 18-22fl-oz
  • Frankentranny Fluid Capacity Dry: 22-24fl-oz
  • Frankentranny Fluid Capacity Wet: 18-22fl-oz
  • F5K Fluid Capacity Dry: 22-24fl-oz
  • F5K Fluid Capacity Wet: 18-22fl-oz
  • DD5 Fluid Capacity Dry: 22-24fl-oz
  • DD5 Fluid Capacity Wet: 18-22fl-oz
  • F6R Fluid Capacity Dry: 30-32fl-oz
  • F6R Fluid Capacity Wet: 26-28fl-oz
  • DD7 Fluid Capacity Dry: 30-32fl-oz
  • DD7 Fluid Capacity Wet: 26-28fl-oz
  • F6K Fluid Capacity Dry: 32fl-oz
  • 4-Speed Fluid Capacity Dry: 22-24fl-oz
  • 4-Speed Fluid Capacity Wet: 18-22fl-oz
  • 6-into-4 Fluid Capacity Dry: 22-24fl-oz
  • 6-into-4 Fluid Capacity Wet: 18-22fl-oz  


    Standard Gear Case Finish Examples (Not applicable to all products)




    Wrinkle Black

    These example finishes are intended to show the exterior treatments of cases, top covers and doors.

    TERM AND CONDITIONS                                                                                         

    • 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, transmission kits, primaries, and oil pans 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. BAKER™ clutches, kicker cover kits, belt drives, F6F kit, reverse systems, covers and accessories 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. 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 invoice of purchase. If after an evaluation has been made by BAKER™ and a defect in materials and/or workmanship is found, BAKER™  will, at BAKER™  option, repair or replace the defective part of the assembly. 


    Due to the uniqueness, low price and assembly outside of typical production process of products indicated as Insider Special products, purchasing these Insider Special products include a warranty so to guarantee the original purchaser to be free of manufacturing defects in materials and workmanship for a period of 1 year from the date of purchase or up to 12,000 miles. We have provided extended options for you to purchase below. 


    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 charges. 


    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 manufactures 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.

    The words H-D®, Softail®, FXR®, Dyna®, FLT®, FLH®, Sportster®, and Buell® are registered trademarks and are for reference only.

    Spectro Gear Lube
    Move your mouse over image to zoom. Click to enlarge.
    Customer Reviews
    5 Based on 14 Reviews
    Write a Review Ask a Question
    • Reviews
    • Questions

    Thank you for submitting a review!

    Your input is very much appreciated. Share it with your friends so they can enjoy it too!

    Filter Reviews:
    • Baker
    • bakers
    • baker trans
    • fluid
    • baker warranty
    • transmission
    • noises
    • transmission oil
    Greg D.
    United States United States
    • What model motorcycle do you ride? 1982 Harley FLH Shovelhead
    Gear Lube

    Baker's transmission oil works great. My transmission shifts smoothly and is quiet.

    Greg DuVal verified customer review of Spectro Gear Lube
    Steven J.
    United States United States
    • What model motorcycle do you ride? 1999 Harley Davidson FLSTF
    Great product. Easier and quieter shifts

    Changed over from another oil. Noises went away. Shifting hot smoother Sincere Thanks

    Steven J. verified customer review of Spectro Gear Lube
    Al M.
    United States United States
    Gear oil

    It works as it’s intended to do so

    Dale W.
    United States United States
    • What model motorcycle do you ride? Big Dog
    Trans Fluid

    With Bakers recommendation, the stuff works.

    Troy N.
    United States
    • What model motorcycle do you ride? 2007 FLHX Streetglide
    Would buy

    I run bakers recommended fluid in my baker trans to keep my baker warranty

    Web Product ID: 9225482126
    Baker Drivetrain Team Illustration