We understand the love affair with your vintage motorcycle, there’s nothing like putting authentic, vintage styled components on your nostalgic bike. That’s why BAKER has taken the time to reinvent the 4 Speed Top Covers. The BAKER billet aluminum (6061-T6) top covers come with a linear detent system for that smooth reliable shift quality you have come to expect.
The shift drum starts life as a solid chunk of steel; we machine in all the features, then we remove the unnecessary material. Two Teflon coated bushings are pressed into the drum for smooth rotation during shifts. Our top covers come in FL or N1 shift patterns on the Jockey Top and FL, FX or N1 for the Ratchet Top Cover.
– Carved out of billet aircraft grade 6061-T6
– Billet Shift Drums with Permaglide bushing
– Hard anodized backing plate (Ratchet Top Covers Only)
– Stainless steel, T303 engraved detent cap
– Linear detent for smooth positive shifting
– Hidden vent system
– 2 Year limited warranty
-All Ratchet top covers fit 1952-1979 H-D 4-Speeds & BAKER 4-Speed applications
-All Jockey top covers fit 1936-1965 H-D 4-Speeds & BAKER 4-Speed applications
BAKER 4 speed top covers are designed for that vintage appeal yet function like a modern masterpiece. All top covers are designed for the fork rod to be captured through 1-side of the top cover. The stock covers have a O-ring on the end of the shaft which sticks out and could potentially leak over time.
Each top cover has a linear roller ball detent plunger for smooth consistent shifts. The linear detent consists of a 11/32″ primary ball bearing that is cradled by, and rolls on, 60 secondary micro ball bearings. In turn the cradle is part of the plunger that actuates during shifting and is guided by a tertiary linear 24 micro ball bearing system.
Linear Detent Plunger
All 4-Speed top covers have a hidden vent system which allows the transmission to breathe. Machined into the internal walls of the billet top cover, the breathing system flows through the ratchet cavity and out through the shift cover. Jockey top covers are vent out through the bottom side of the cover just below the neutral switch.
Cutaway Showing Hidden Vent
Ratchet Shift Drum Options
We manufacture 3 shift drums for the Ratchet Top; the FX & FL types with conventional shift patterns and N1 style. Put an FX drum on a FL tranny and stomp down on the shift lever to upshift. Same thing if you put a FL drum on a FX tranny. The N1 drum takes the FX pattern and relocates neutral down below 1st for a N-1-2-3-4 pattern as an alternative to the standard 1-N-2-3-4 pattern. Great for foot clutch and performance applications.
Ratchet Top Configurations
Jockey Shift Drum Options
We manufacture 2 shift drums for the Jockey Top; the FL & N1 . The FL shift drum is setup for a top pull (1936-46) or bottom pull (1947-65), shift pattern is 1-N-2-3-4. The N1 drum is set up as a bottom pull only and relocates neutral down below 1st for a N-1-2-3-4 pattern as an alternative to the standard 1-N-2-3-4 pattern. Great for foot clutch and performance applications.
Jockey Top Configurations
Cover Finish Options
Wrinkle Black Finish
Show Polish Finish
-All Ratchet top covers below fit 1952-1979 H-D 4-Speeds & BAKER 4-Speed applications
-All Jockey top covers below fit 1936-1965 H-D 4-Speeds & BAKER 4-Speed applications
|Old PN||NEW PN||Description||Finish|
|4-125R-FL||4-12506-FL||4-Speed Jockey Cover Top Assembly, FL Shift System||Raw|
|4-125R-N1||4-12506-N1||4-Speed Jockey Cover Top Assembly, N1 Shift System||Raw|
|4-130B-FL||4-13003-FL||4-Speed Jockey Cover Top Assembly, FL Shift System||Black|
|4-130B-N1||4-13003-N1||4-Speed Jockey Cover Top Assembly, N1 Shift System||Black|
|4-135P-FL||4-13502-FL||4-Speed Jockey Cover Top Assembly, FL Shift System||Polished|
|4-135P-N1||4-13502-N1||4-Speed Jockey Cover Top Assembly, N1 Shift System||Polished|
|4-165R-FL||4-16506-FL||4-Speed Ratchet Top Cover Assembly, FL Shift System||Raw|
|4-165R-N1||4-16506-N1||4-Speed Ratchet Top Cover Assembly, N1 Shift System||Raw|
|4-165R-FX||4-16506-FX||4-Speed Ratchet Top Cover Assembly, FX Shift System||Raw|
|4-170B-FL||4-17003-FL||4-Speed Ratchet Top Cover Assembly, FL Shift System||Black|
|4-170B-N1||4-17003-N1||4-Speed Ratchet Top Cover Assembly, N1 Shift System||Black|
|4-170B-FX||4-17003-FX||4-Speed Ratchet Top Cover Assembly, FX Shift System||Black|
|4-175P-FL||4-17502-FL||4-Speed Ratchet Top Cover Assembly, FL Shift System||Polished|
|4-175P-N1||4-17502-N1||4-Speed Ratchet Top Cover Assembly, N1 Shift System||Polished|
|4-175P-FX||4-17502-FX||4-Speed Ratchet Top Cover Assembly, FX Shift System||Polished|
– Jockey Top only has the FL or N1 shift drum option; add suffix “-FL36″, “FL47 or “N1″ after the part number; Ex: 4-135P-FL36
– A neutral switch is standard on Jockey Tops. To specify deletion of the neutral switch, add ‘NS’ to the end of the part number; Ex 4-170B-FL-NS. A low profile threaded plug is installed in place of the switch
Top Cover instructions with exploded views: Click Here
TERM AND CONDITIONS
LIMITED WARRANTY POLICY
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.
WARRANTIES FOR "INSIDER SPECIAL" PRODUCTS
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.
RETURNS AND EXCHANGES
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.
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 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.