BAKER Drivetrain
Goodbye Summer, Hello Savings Bundle
Goodbye Summer, Hello Savings Bundle
$ 898.00
- Description
- 34-Tooth Comp Sprocket Kit
- Armored Attitude Adjuster Kit
- Primary Rebuild Kit
- Primary Fluid
- Warranty
Upgrade your primary with the 34-Tooth Comp Sprocket Kit + Armored Attitude Adjuster, and we’ll throw in a Primary Rebuild Kit and Primary Fluid—FREE. But don’t wait—this limited-time offer ends September 17, 2025, at 11:59 p.m. EDT.
BAKER Drivetrain unveils the final solution to the late model compensator problems. The BAKER Drivetrain compensator sprocket is engineered with an annular oil distribution system that scavenges primary oil and pumps it with centrifugal force to all radial and axial thrust surfaces. English translation: This sprocket delivers quiet operation, relentless durability, and refined function to smooth out the inherent power pulsations of the second-generation Twin Cam and M8 motors.
Features
BAKER Drivetrain’s Compensator Kit features:
- Decreased compensating cam lobe diameter yielded a significant reduction in cam lobe velocities. With the reduction in cam lobe velocities, comes a reduction in wear.
- Increased radial width of the compensating cam lobes reduced the P.S.I. loading which greatly extended the durability.
- Seven supportive spokes structurally tie the sprocket ‘ring’ to the sprocket hub.
- The mass of the sprocket is concentrated towards the center so the ‘flywheel effect’ is minimized which reduces N&V noises during operation and shut down.
- Heat treated 4140 alloy steel construction.
- Made in America by Americans.
Benefits:
- Improved functions
- Quieter operation
- Extended durability over the stock configuration
Fitment
• 2006 – 2017 Dyna Models (PN 730-67)
• 2007 – 2017 Softail* | Touring Models (PN 730-67)
• 2017 – Later Touring Milwaukee 8 Models (PN 730-M8)
• 2018 – Later Softail* Models (PN 730-M8)
* Compensating Sprocket currently does not fit Softails with
wide rear tires (i.e.- 240 rear tires found on Fat Boy®, Breakout®, & CVO Models, etc)
For 2007 to 2010 Big Twin: The customer will need a HD rotor to install the BAKER compensating sprocket. For a 2006 Dyna, the customer will need an HD rotor and stator. BAKER Drivetrain offers the rotor, but the stator must be purchased directly from a local HD dealership (PN 30017-07). For 2011 Big Twin models, if the stock spring cup is welded onto the stock rotor, a new HD rotor will be needed in order to install the BAKER compensating sprocket. HD rotors and stators are available for purchase from BAKER Drivetrain or your local HD dealer.
Part Numbers
| 730-67 | BAKER 34 Tooth Compensator Sprocket Kit, Twin Cam Models, 2006-2017 Dyna, 2007-2017 Softail, 2007-2016 Touring |
| 730-M8 | BAKER 34 Tooth Compensator Sprocket Kit, M8 Models |
| 30041-08A | Rotor Assembly, Twin Cam |
Detail
Instructions
Click here for the BAKER Compensator Sprocket Instructions
Click here for the 34-Tooth Compensator Sprocket Kit Addendum for 2007-2010 Twin Cams.
Inspect the inside of the outer primary for a plastic oil deflector or casted-in oil deflector. The plastic deflector needs to be removed for adequate clearance for the BAKER Compensator Sprocket Kit. If the deflector is casted into the inner primary; this area needs to be ground out using a small air die grinder or equivalent for proper clearance.
Video on proper chain adjustment: Click Here
For 2007 to 2010 Big Twin: The customer will need a HD rotor to install the BAKER compensating sprocket. For a 2006 Dyna, the customer will need a HD rotor and stator. BAKER Drivetrain offers the rotor, but the stator must be purchased directly from a local HD dealership (PN 30017-07). For 2011 Big Twin models, if the stock spring cup is welded onto the stock rotor, a new HD rotor will be needed in order to install the BAKER compensating sprocket. HD rotors and stators are available for purchase from BAKER Drivetrain or your local HD dealer. For further questions, please contact us through the website chat, email us at sales@bakerdrivetrain.com, or call us at 517-339-3835.
Stronger than the original for those with more abusive inclinations!
The BAKER Armored Attitude Adjuster is an insurance policy for your motorcycle in the form of a manual chain tensioner that allows you to set the chain to the proper slack when cold. Be assured that the adjustment will not change, saving you money on costly repairs in the future.
With the stock auto chain tensioner used in 2006 and later Dynas as well as 2007 and later Softail and Touring bikes the primary chain tends to tighten over time. When cold, the center distance between the output of the engine and the input of the transmission is short, putting slack in the chain. The auto tensioner incrementally ratchets up, tightening the chain to compensate. This happens repeatedly. As your bike warms up, the center distance increases, and your chain becomes too tight. A chain that is too tight puts harsh loads on your motor case bearings, inner primary bearings, clutch hub bearings and transmission output gear bearings. If left unaddressed, you’ll end up paying thousands for repairs to your engine and transmission.
Our Armored Attitude Adjuster allows you to set the chain to the proper 5/8”-7/8” (cold) freeplay without the chance of overtightening so you can ride worry free!
Features
- Chain shoe machined from Nylon 66
- Active Plate and Back Support Plate investment cast with 4130 steel
- 28% finer teeth spacing (compared to 2001-06 chain adjusters) for more accurate adjustments
- Chain adjustment method same as 2001-06 style stock ‘L’Bracket’ adjusters.
Benefits
- Increases torque by 3.42 ft/lbs
- Reduces primary noise
- Helps prevent damage to the primary
- Improves motor bottom end and inner primary race bearing durability
Fitment
- 2006-Later Dyna Models
- 2007-2017 Softail Models
- 2007-Later Touring Models
The Armored Attitude Adjuster is an excellent solution for any non-racing application.
Part Number
| 177-67A-A | BAKER Armored Attitude Chain Adjuster Assembly, 2006-2017 Dyna, 2007-2017 Softail, 2007-Up Touring |
Detail
The Attitude Chain Adjuster solves the issues associated with the stock auto chain tensioner on 2006-Later Dyna & 2007-Later Softail/ Touring models. The first moment the chain has enough slack into it to ratchet the shoe up another notch, and thus tightening the chain, it will. One notch tighter might not be an issue, but you don’t have any control of when this mechanism stops tightening the chain. The end result in many cases is the primary chain is so tight that it will start wearing out left side motor case bearings, inner primary bearings, clutch hub bearings and transmission output gear bearings. Our manual chain tensioner allows you to adjust the chain to the proper 5/8-7/8″ (cold) freeplay, and never have to worry about the chain getting too tight. We offer this chain adjuster for fitment with stock outer primary covers.
Note: Check the primary chain tension at the 500-mile interval and then after every 5000 miles. If the chain cannot be adjusted properly, then replace the chain.
Instructions
BAKER Attitude Adjuster Installation Instructions: Click Here
Video on proper chain adjustment: Click Here
This all-inclusive convenient kit is designed to freshen up those high mileage bikes, prevent leakage, and includes everything you’ll need after opening up your primary. Includes gaskets, seals and O-rings.
Features
Kits include all the seals and gaskets to avoid leaks in your primary. For a detailed list of kit contents, click on the "Detail" tab.
Benefits
A convenient all-inclusive primary gasket and seal kit for transmission installs or anytime the primary case is removed.
Fitment
- 2005-2010 Big Dog Motorcycles
- 1994-up FL
- 1994-up Softail
- 1994-up Dyna
Part Numbers
| PRK-FXST-2 | Primary Rebuild Kit, 2006-2017 Dyna, 2007-2017 Softail |
| PRK-BDM | Primary Rebuild Kit, 2005-2010 Big Dog |
| PRK-FXST | Primary Rebuild Kit, 1994-2006 Softail, 1994-2005 Dyna |
| PRK-FL | Primary Rebuild Kit, 1994-2006 Touring |
| PRK-FL-2 | Primary Rebuild Kit, 2007-2016 Touring |
| PRK-FL-M8 | Primary Rebuild Kit, M8 Touring |
| PRK-ST-M8 | Primary Rebuild Kit, M8 Softail |
Detail
- PRK-BDM: Primary Rebuild Kit-2005-2010 BDM.
PRK-BDM Kit includes:
| PN | Description | Quantity |
| 6200 | Throw Out Bearing | 1 |
| 3163-DSSC | Key Hole Fitting | 1 |
| 1308-175PP | Internal Snap Ring | 1 |
| 3133-DSSC | Seat Clutch | 1 |
| 39RRRE | External Snap Ring | 1 |
| 3079-DSSC | O-Ring for Inspection Cover | 1 |
| 10705-02499 | O-Ring for Inner Primary to Trans | 1 |
| 3027G-DSSC | Gasket for inspection cover | 1 |
| 292216 | Primary Drive Lock Tab | 8 |
| 11147B | O-Ring for Inner Primary to Case | 1 |
| 0480809 | O-Ring | 1 |
| 0480876 | O-Ring | 6 |
| 0480874 | O-Ring | 2 |
| 3078-DSSC | O-Ring for Inspection Cover | 1 |
| 3026A-DSSC | O-Ring for Primary Cover | 1 |
-
PRK-FL: Primary Rebuild Kit-1994-2006 FL
PRK-FL Kit Includes:
| PN | Description | Quantity |
| 34901-94C | Primary Housing Gasket | 1 |
| 34906-85I | Inspection Cover Gasket | 1 |
| 25416-99C | Clutch Cover Gasket | 1 |
| 12052A | Mainshaft Seal | 1 |
| 12066A | Starter Motor Shaft Oil Seal | 1 |
| 11105 | Oil Plug O-Ring | 2 |
| 11147B | O-Ring for Inner Primary to Case | 1 |
| 292216 | Primary Drive Lock Tab | 5 |
| 33126-94 | Lock Plate | 1 |
| 31430-94 | Washer | 1 |
| 25x52x07ADL | Oil Seal | 1 |
-
PRK-FL-2: Primary Rebuild Kit- 2007-up FL
PRK-FL-2 Kit Includes:
| PN | Description | Quantity |
| 34901-07 | Primary Gasket | 1 |
| 34934-06 | Primary Housing Gasket | 1 |
| 17369-06S | Derby Cover O-Ring | 1 |
| 12052A | Mainshaft Seal | 1 |
| 25x52x07ADL | Oil Seal | 1 |
| 27444-00Y | Starter Motor O-Ring | 1 |
-
PRK-FXST: Primary Rebuild Kit- 1994-2006 Softail and 1994-2005 Dyna
PRK-FXST Kit Includes:
| PN | Description | Quantity |
| 60539-94B | Primary Cover Gasket | 1 |
| 60567-90C | Inspection Cover Gasket | 1 |
| 25416-99C | Clutch Cover Gasket | 1 |
| 12052A | Mainshaft Seal | 1 |
| 12066A | Oil Seal for Starter Motor Shaft | 1 |
| 11105 | Oil Plug O-Ring | 2 |
| 11147B | O-Ring for Inner Primary to Case | 1 |
| 63859-95B | Primary Pedestal bosses Gasket | 2 |
| 292216 | Primary Drive Lock Tab | 6 |
| 33126-94 | Lock Plate | 1 |
| 31430-94 | Washer | 1 |
| 25x52x07ADL | Oil Seal | 1 |
- PRK-FXST-2: Primary Rebuild Kit- 2007-up Softail & 2006-up Dyna
PRK-FXST-2 Kit Includes:
| PN | Description | Quantity |
| 60547-06 | Primary Gasket | 1 |
| 34934-06 | Primary Housing Gasket | 1 |
| 17369-06S | Derby Cover O-Ring | 1 |
| 12052A | Mainshaft Seal | 1 |
| 25x52x07ADL | Oil Seal | 1 |
| 27444-00Y | Starter Motor O-Ring | 1 |
- PN# PRK-FL-M8: Primary Rebuild Kit, M8 Touring
PRK-FL-M8 Kit includes:
| PN | Description | Quantity |
| 12052A | Inner Primary Mainshaft Seal | 1 |
| 17369-06S | Derby Cover Service Kit | 1 |
| 25700378 | Primary Cover Gasket | 1 |
| 25700679 | Primary to Crankcase Gasket |
1 |
- PRK-ST-M8: Primary Rebuild Kit, M8 Softail
PRK-ST-M8 includes:
| PN | Description | Quantity |
| 12052A | Inner Primary Mainshaft Seal | 1 |
| 25700564 | Primary Cover Gasket | 1 |
| 25700679 | Primary to Crankcase Gasket | 1 |
| 25701080 | Derby Cover O-Ring | 1 |
Picking the right primary fluid ensures the life and durability of your primary, that’s why BAKER recommends a 85W primary oil like the Spectro Heavy Duty Primary Oil. This Spectro SAE 85W viscosity helps eliminate any slipping or clutch drag.
Learn more about Spectro oils here: https://spectro-oils.com
Oil Capacity Detail
- BAKER Bully Primary Cover Fluid Capacity Dry: 38-45fl-oz
- BAKER Function Formed Primary Fluid Capacity Dry: 10-14fl-oz
- 2005-2010 Big Dog Motorcycles Primary Fluid Capacity Dry: 32 fl-oz
-
Factory HD Primary Fluid Capacity
- 1 Quart* (32 fluid oz) for all Evo and Twin Cam88/103 primaries from 1980-2006 (*except 2006 Dyna)
- 45 fl-oz for 2006-up Dyna, 2007-up Softail & Touring if the entire primary assembly has been removed OR 38 fluid oz if you are simply draining the old fluid and adding new oil
Part Number
| R.HDPCO | Spectro Oil, Primary Chain Case and Sportster Transmission 32oz |
TERMS 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.
LIMITED WARRANTY POLICY
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 AND EXCHANGES
Returns are permitted within 30 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.
ADDITIONAL WARRANTY PROVISIONS
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.
