This optional gearbox transforms your 5-gear B7 gearbox into a 3-gear configuration. 

Unlike the new Team Associated 3-gear transmission, the R1 design places the motor further rearwards to significant improve rear traction - a much-needed characteristic on low to medium traction conditions!

This setup also minimizes rotating mass and reduces friction in the drivetrain, leading to improved acceleration and efficiency.

Features and Specifications:

• Direct fit
• Lightweight. 4g lighter than the kit 5-gear transmission, considering the removal of 4 bearings, two idler gears, two idler shafts, and one screw. 
  
• Cut 39T Idler gear included [8mm wide]
• Inhouse precision machining 

Fits:

• RC10B7 [#90041]
• RC10B7D [#90042]

Included: 

• Left and Right Transmission Case x1
• Lightened 39T Idler Gear x1
• Rear Fan Mount x1
• M3x12 Button Head Screws, x3
• M3x14 Button Head Screws, x4
• M3x16 Flat Head Screw, x1
• M3 Locknut, Black x1

Tip: The transmission includes a fan mount that makes use of the stock fan location. Team drivers have found an additional mounting option by easily double-sticking the fan in front of the motor, between the motor and battery.

NOTE: This transmission requires the use of a lightened/cut 39T idler gear (included)