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Drive Brake Right Side Drive 6-Speed

Drive brake transmissions clean up the rear wheel clutter aesthetic. BAKER Drivetrain designed a drive brake transmission as a holistic complete system to address performance concerns found with existing bolt-on attempts. After putting available products to the test, BAKER found opportunity to truly deliver braking performance by squeezing a hefty 8” rotor that actually allows powerful, full-pad engagement. Visually, it is very clean with the caliper located in between the belt perimeter along with a 6061-T6 aluminum clutch actuator spider sporting a minimalist BAKER Function-Formed design.

  • 1990-99 Right Side Drive Softail-Based and Custom Right Side Drive Motorcycles
  • 8” stainless steel rotor
  • 6061-T6 aluminum clutch actuator spider with 1.5” diameter piston (hydraulic only). 11/16” master cylinder recommended
  • Dual piston brake caliper with PM guts
  • Inboard piston bore is an integral part of the door
  • Polished stainless steel stand-offs under front spider legs
  • Dual brake bleeders; one above each piston
  • Available with show polished or chrome finishes
  • Chrome top cover available with or without neutral switch
  • 29 tooth .5” offset pulley standard
  • N1 drum optional
  • ‘R’ ratio no cost option for big motor applications

Case Finish Options: The Drive Brake comes in Show Polished or Chrome.

Polished Case

 Chrome Case 

Internal Design
Some bolt on systems had small diameter rotors with partial brake pad engagement; the one we evaluated wouldn’t even allow us to lock up and skid the rear wheel. So we designed our system using an 8” rotor with full pad engagement. With our prototype we were able to lock up the rear wheel and throw it sideways. The braking caliper is designed into the bearing door for ultimate strength, with a removable caliper on the outside for pad replacement in the future. Dual bleeders come standard allowing you to get every bit of air out of the system, thus leaving a firm/positive braking feel. The hydraulic actuator sits up off of the rotor being mounted off of the outside caliper and front fender which wraps the front of the rotor for saftey.The hydraulic actuator has a 1.5″ diameter piston with dual O-Rings. BAKER recommends a 11/16″ master cylinder (clutch perch) for the hydraulic clutch. Both the brake and clutch hydraulic system is DOT 5 compatible.

Internal Section View

Bleeder Valve Locations

Recalibration Box 95E-56A

Speedometer Recalibration
The electronic speedometer provision would utilize a stock 1996-2006 speed sensor, PN 74437-96. Pending what type of electronic speedometer you use, an additional speedometer recalibration box might have to be purchased, BAKER PN 95E-56A.

Shift Drum Options

  • Standard shift drum pattern (1-N-2-3-4-5-6)
  • N1 shift drum pattern (N-1-2-3-4-5-6)

Belt or Chain
The drive brake comes standard with a 29 tooth .500″ offset pulley assembly or you have your option of using a 23 tooth .900″ offset sprocket.

Top Cover Options

Top Cover Option
On some custom applications or builds you don’t need the use of a neutral light, in that case you have the option of getting the Drive Brake with or without a neutral switch top cover. The neutral switch top cover comes standard.

Standard Ratios

  • 1st Gear 2.94
  • 2nd Gear 2.21
  • 3rd Gear 1.60
  • 4th Gear 1.23
  • 5th Gear 1.00
  • 6th Gear .86

R-Ratio Ratios

  • 1st Gear 2.82
  • 2nd Gear 2.08
  • 3rd Gear 1.60
  • 4th Gear 1.23
  • 5th Gear 1.00
  • 6th Gear .86


  • 1990-99 Right Side Drive Softail-Based and Custom Right Side Drive Motorcycles

PN Description

  • R701PB-BRK Show polished Drive Brake transmission assembly w/ standard ratios
  • R7211PB-BRK Show polished Drive Brake transmission assembly w/ ‘R’ ratio
  • R701CB-BRK Chrome Drive Brake transmission assembly w/ standard ratios
  • R7211CB-BRK Chrome Drive Brake transmission assembly w/ ‘R’ ratio


  • If you want a Chain drive sprocket add suffix “-S” at the end of the part number for 23 tooth sprocket, Ex: R701PB-BRK-S.
  • If you would like a N1 shift drum pattern add suffix “-N1″ before -BRK in the part number, Ex: R701PB-N1-BRK.
  • If you would like a no neutral switch top cover add suffix “N” before -BRK, Ex: R701PBN-BRK
  • Chrome drive brake transmissions are only available with show polished bearing door and caliper.

Brake Pad Kit, PN BRK-KIT

Maintenance / Service
The Drive Brake dual piston setup utilizes Performance Machine internal components. BAKER Recommends checking for brake pad wear after the initial 1000 miles and every 5000 miles after to ensure proper function.

Brake Pad Kit

  • Description: Brake Pads and Bypass O-Ring – BAKER

Sprocket or Pulley assembly along with caliper must be removed in order to replace the brake pads

Spectro Oil BD-75140
Recommended Fluid / Level
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. If a GL-5 rated gear lube is not available, these commonly carried viscosities (weights) will work 75W-90, 75W-140 and 85W-140. BAKER does not recommend the use of Syn3 (20W-50).

Learn more about lubricates by reading Bert’s article on ‘Oil & Spiders’ Click Here

  • Drive Brake Fluid Capacity Dry: 22-24fl-oz
  • Drive Brake Fluid Capacity Wet: 18-22fl-oz

Installation Instructions

  • Drive Brake install instructions with exploded views: Click Here

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.

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Drive Brake Right Side Drive 6-Speed
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Baker Drivetrain Team Illustration