The B74.1D is the buggy to choose for clay and dirt track surfaces with an included center differential with 200,000 CST silicone fluid and an optimized dirt kit setup.

The off-road RC car racing scene has changed over the past few years, with turf and carpet racing becoming more popular and grip levels at an all-time high. The engineers inside Team Associated's Area 51 were quick to answer the 4WD class with the RC10B74 Team Kit, a completely new chassis configuration equipped with a long list of features designed to give you the winning edge.

The engineering continues. The B74.1 platform introduces the use of two separate chassis configurations. The B74.1 will be the buggy of choice for high grip carpet or turf track surfaces with its next-generation Octalock 2-Pad high-load, high-capacity, center slipper clutch and optimized carpet kit setup. The B74.1D is the buggy to choose for clay and dirt track surfaces with an included center differential with 200,000 CST silicone fluid and an optimized dirt kit setup.

Both kits utilize redesigned, low-profile shock towers with shorter shock shafts and bodies to lower the center of gravity, providing more predictable handling. Also included in both kits are new low roll center (LRC) C and D arm mounts, 66mm CVA bones and axles, and 2.0mm G10 fiberglass chassis brace supports, which all add up to making the B74.1 and B74.1D easier to drive, and easier to push hard on all track surfaces.

Setups and tuning parts are interchangeable between the B74.1 and B74.1D. Both versions come with the speed, durability, and lineage expected of a true champion. Choose the configuration that suits your track and conquer the competition!

Center differential with 72T and 78T spur gears and 200,000 cSt silicone fluid

Includes 1.2mm and 1.3mm anti-roll bars front and rear for dirt

5.0mm rear hex adapters for wide stance with dirt tires

Includes updated kit setup with V2 spring package of Yellow front and Blue rear springs

Includes shorter 23mm front and 27.5mm V2 Big Bore threaded aluminum shocks with 12mm machined pistons and X-rings for lower CG, reduced weight, and improved performance

New 4mm graphite front shock tower lowered by 2mm with an additional row of tuning holes

New 4mm graphite rear shock tower lowered by 5.5mm for maximum stability and predictability

+3mm aluminum steering rack for optimized bump steer at low ride heights

66mm rear CVA driveshafts and axles for more on-power traction and a more predictable driving feel

New molded ESC tray for quick electronics removal for cleaning

New molded 30mm fan mount and hardware (fan not included)

Updated aluminum LRC C and D suspension mounts for more rear traction and better cornering balance

Increased flex with 2.0mm G10 chassis brace supports for more predictable rear traction and better bump handling

New simplified design 2.5mm graphite battery strap with indexed battery locations, easy height setup, and battery removal for both standard and low-profile shorty batteries

New low-profile molded plastic battery posts included in addition to standard posts

New 16mm differential outdrives with a more durable, lightweight design

Updated rear wing with optional low carpet racing trim line for reduced drag in high traction

Updated symmetric rear arms with new shock mounting position (farther inside) for increased rear traction on dirt

Updated plastic rear hub for more durability on the upper link mount. RC10B74.1 hubs continue with the aluminum rear hub link mount and axle height adjustment in 1mm increments for fine tuning.

Updated 2.5mm graphite steering arms for increased durability

Updated plastic steering blocks with 5x12mm outer ball bearing with steel bearing tubes for improved durability

Updated V2 2mm hard-anodized 7075-T6 aluminum chassis with spur gear clearance and updated mount holes for ESC tray

7075-T6 aluminum bulkheads with quick-change 0mm-3mm adjustable differential height for low ride-height on carpet while maintaining efficient driveshaft alignment

Car design allows use of center differential or slipper clutch without changing center driveshafts

Easy access to differentials for worry-free maintenance and adjustment

7075-T6 aluminum arm mounts use inserts for fine tuning a large range of anti-squat, kick-up, and toe adjustments

Front and rear anti-roll bars use a common shape for minimal spare part count

7075-T6 aluminum sliding motor mount and center bulkhead with increased rigidity for more accurate gear mesh

7075-T6 aluminum 9-degree caster blocks

Floating servo mount with 7075-T6 aluminum mount and 2.5mm graphite brace

Lightweight clear body and wing included